21879900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:201

約数の個数: 216

約数和(自身を含む): 82328064

約数和(自身を除く): 60448164

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 25, 28, 30, 35, 36, 42, 45, 46, 50, 60, 63, 69, 70, 75, 84, 90, 92, 100, 105, 115, 126, 138, 140, 150, 151, 161, 175, 180, 207, 210, 225, 230, 252, 276, 300, 302, 315, 322, 345, 350, 414, 420, 450, 453, 460, 483, 525, 575, 604, 630, 644, 690, 700, 755, 805, 828, 900, 906, 966, 1035, 1050, 1057, 1150, 1260, 1359, 1380, 1449, 1510, 1575, 1610, 1725, 1812, 1932, 2070, 2100, 2114, 2265, 2300, 2415, 2718, 2898, 3020, 3150, 3171, 3220, 3450, 3473, 3775, 4025, 4140, 4228, 4530, 4830, 5175, 5285, 5436, 5796, 6300, 6342, 6795, 6900, 6946, 7245, 7550, 8050, 9060, 9513, 9660, 10350, 10419, 10570, 11325, 12075, 12684, 13590, 13892, 14490, 15100, 15855, 16100, 17365, 19026, 20700, 20838, 21140, 22650, 24150, 24311, 26425, 27180, 28980, 31257, 31710, 33975, 34730, 36225, 38052, 41676, 45300, 47565, 48300, 48622, 52095, 52850, 62514, 63420, 67950, 69460, 72450, 72933, 79275, 86825, 95130, 97244, 104190, 105700, 121555, 125028, 135900, 144900, 145866, 156285, 158550, 173650, 190260, 208380, 218799, 237825, 243110, 260475, 291732, 312570, 317100, 347300, 364665, 437598, 475650, 486220, 520950, 607775, 625140, 729330, 781425, 875196, 951300, 1041900, 1093995, 1215550, 1458660, 1562850, 1823325, 2187990, 2431100, 3125700, 3646650, 4375980, 5469975, 7293300, 10939950, 21879900]

約数ペア:

[(1, 21879900), (2, 10939950), (3, 7293300), (4, 5469975), (5, 4375980), (6, 3646650), (7, 3125700), (9, 2431100), (10, 2187990), (12, 1823325), (14, 1562850), (15, 1458660), (18, 1215550), (20, 1093995), (21, 1041900), (23, 951300), (25, 875196), (28, 781425), (30, 729330), (35, 625140), (36, 607775), (42, 520950), (45, 486220), (46, 475650), (50, 437598), (60, 364665), (63, 347300), (69, 317100), (70, 312570), (75, 291732), (84, 260475), (90, 243110), (92, 237825), (100, 218799), (105, 208380), (115, 190260), (126, 173650), (138, 158550), (140, 156285), (150, 145866), (151, 144900), (161, 135900), (175, 125028), (180, 121555), (207, 105700), (210, 104190), (225, 97244), (230, 95130), (252, 86825), (276, 79275), (300, 72933), (302, 72450), (315, 69460), (322, 67950), (345, 63420), (350, 62514), (414, 52850), (420, 52095), (450, 48622), (453, 48300), (460, 47565), (483, 45300), (525, 41676), (575, 38052), (604, 36225), (630, 34730), (644, 33975), (690, 31710), (700, 31257), (755, 28980), (805, 27180), (828, 26425), (900, 24311), (906, 24150), (966, 22650), (1035, 21140), (1050, 20838), (1057, 20700), (1150, 19026), (1260, 17365), (1359, 16100), (1380, 15855), (1449, 15100), (1510, 14490), (1575, 13892), (1610, 13590), (1725, 12684), (1812, 12075), (1932, 11325), (2070, 10570), (2100, 10419), (2114, 10350), (2265, 9660), (2300, 9513), (2415, 9060), (2718, 8050), (2898, 7550), (3020, 7245), (3150, 6946), (3171, 6900), (3220, 6795), (3450, 6342), (3473, 6300), (3775, 5796), (4025, 5436), (4140, 5285), (4228, 5175), (4530, 4830)]