21648900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 78786624

約数和(自身を除く): 57137724

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 61, 65, 70, 75, 78, 84, 91, 100, 105, 122, 130, 140, 150, 156, 169, 175, 182, 183, 195, 210, 244, 260, 273, 300, 305, 325, 338, 350, 364, 366, 390, 420, 427, 455, 507, 525, 546, 610, 650, 676, 700, 732, 780, 793, 845, 854, 910, 915, 975, 1014, 1050, 1092, 1183, 1220, 1281, 1300, 1365, 1525, 1586, 1690, 1708, 1820, 1830, 1950, 2028, 2100, 2135, 2275, 2366, 2379, 2535, 2562, 2730, 3050, 3172, 3380, 3549, 3660, 3900, 3965, 4225, 4270, 4550, 4575, 4732, 4758, 5070, 5124, 5460, 5551, 5915, 6100, 6405, 6825, 7098, 7930, 8450, 8540, 9100, 9150, 9516, 10140, 10309, 10675, 11102, 11830, 11895, 12675, 12810, 13650, 14196, 15860, 16653, 16900, 17745, 18300, 19825, 20618, 21350, 22204, 23660, 23790, 25350, 25620, 27300, 27755, 29575, 30927, 32025, 33306, 35490, 39650, 41236, 42700, 47580, 50700, 51545, 55510, 59150, 59475, 61854, 64050, 66612, 70980, 72163, 79300, 83265, 88725, 103090, 111020, 118300, 118950, 123708, 128100, 138775, 144326, 154635, 166530, 177450, 206180, 216489, 237900, 257725, 277550, 288652, 309270, 333060, 354900, 360815, 416325, 432978, 515450, 555100, 618540, 721630, 773175, 832650, 865956, 1030900, 1082445, 1443260, 1546350, 1665300, 1804075, 2164890, 3092700, 3608150, 4329780, 5412225, 7216300, 10824450, 21648900]

約数ペア:

[(1, 21648900), (2, 10824450), (3, 7216300), (4, 5412225), (5, 4329780), (6, 3608150), (7, 3092700), (10, 2164890), (12, 1804075), (13, 1665300), (14, 1546350), (15, 1443260), (20, 1082445), (21, 1030900), (25, 865956), (26, 832650), (28, 773175), (30, 721630), (35, 618540), (39, 555100), (42, 515450), (50, 432978), (52, 416325), (60, 360815), (61, 354900), (65, 333060), (70, 309270), (75, 288652), (78, 277550), (84, 257725), (91, 237900), (100, 216489), (105, 206180), (122, 177450), (130, 166530), (140, 154635), (150, 144326), (156, 138775), (169, 128100), (175, 123708), (182, 118950), (183, 118300), (195, 111020), (210, 103090), (244, 88725), (260, 83265), (273, 79300), (300, 72163), (305, 70980), (325, 66612), (338, 64050), (350, 61854), (364, 59475), (366, 59150), (390, 55510), (420, 51545), (427, 50700), (455, 47580), (507, 42700), (525, 41236), (546, 39650), (610, 35490), (650, 33306), (676, 32025), (700, 30927), (732, 29575), (780, 27755), (793, 27300), (845, 25620), (854, 25350), (910, 23790), (915, 23660), (975, 22204), (1014, 21350), (1050, 20618), (1092, 19825), (1183, 18300), (1220, 17745), (1281, 16900), (1300, 16653), (1365, 15860), (1525, 14196), (1586, 13650), (1690, 12810), (1708, 12675), (1820, 11895), (1830, 11830), (1950, 11102), (2028, 10675), (2100, 10309), (2135, 10140), (2275, 9516), (2366, 9150), (2379, 9100), (2535, 8540), (2562, 8450), (2730, 7930), (3050, 7098), (3172, 6825), (3380, 6405), (3549, 6100), (3660, 5915), (3900, 5551), (3965, 5460), (4225, 5124), (4270, 5070), (4550, 4758), (4575, 4732)]