21175700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1$

素因数の和:226

約数の個数: 108

約数和(自身を含む): 57183840

約数和(自身を除く): 36008140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 169, 175, 179, 182, 260, 325, 338, 350, 358, 364, 455, 650, 676, 700, 716, 845, 895, 910, 1183, 1253, 1300, 1690, 1790, 1820, 2275, 2327, 2366, 2506, 3380, 3580, 4225, 4475, 4550, 4654, 4732, 5012, 5915, 6265, 8450, 8950, 9100, 9308, 11635, 11830, 12530, 16289, 16900, 17900, 23270, 23660, 25060, 29575, 30251, 31325, 32578, 46540, 58175, 59150, 60502, 62650, 65156, 81445, 116350, 118300, 121004, 125300, 151255, 162890, 211757, 232700, 302510, 325780, 407225, 423514, 605020, 756275, 814450, 847028, 1058785, 1512550, 1628900, 2117570, 3025100, 4235140, 5293925, 10587850, 21175700]

約数ペア:

[(1, 21175700), (2, 10587850), (4, 5293925), (5, 4235140), (7, 3025100), (10, 2117570), (13, 1628900), (14, 1512550), (20, 1058785), (25, 847028), (26, 814450), (28, 756275), (35, 605020), (50, 423514), (52, 407225), (65, 325780), (70, 302510), (91, 232700), (100, 211757), (130, 162890), (140, 151255), (169, 125300), (175, 121004), (179, 118300), (182, 116350), (260, 81445), (325, 65156), (338, 62650), (350, 60502), (358, 59150), (364, 58175), (455, 46540), (650, 32578), (676, 31325), (700, 30251), (716, 29575), (845, 25060), (895, 23660), (910, 23270), (1183, 17900), (1253, 16900), (1300, 16289), (1690, 12530), (1790, 11830), (1820, 11635), (2275, 9308), (2327, 9100), (2366, 8950), (2506, 8450), (3380, 6265), (3580, 5915), (4225, 5012), (4475, 4732), (4550, 4654)]