21122700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 61610640

約数和(自身を除く): 40487940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 181, 300, 362, 389, 543, 724, 778, 905, 1086, 1167, 1556, 1810, 1945, 2172, 2334, 2715, 3620, 3890, 4525, 4668, 5430, 5835, 7780, 9050, 9725, 10860, 11670, 13575, 18100, 19450, 23340, 27150, 29175, 38900, 54300, 58350, 70409, 116700, 140818, 211227, 281636, 352045, 422454, 704090, 844908, 1056135, 1408180, 1760225, 2112270, 3520450, 4224540, 5280675, 7040900, 10561350, 21122700]

約数ペア:

[(1, 21122700), (2, 10561350), (3, 7040900), (4, 5280675), (5, 4224540), (6, 3520450), (10, 2112270), (12, 1760225), (15, 1408180), (20, 1056135), (25, 844908), (30, 704090), (50, 422454), (60, 352045), (75, 281636), (100, 211227), (150, 140818), (181, 116700), (300, 70409), (362, 58350), (389, 54300), (543, 38900), (724, 29175), (778, 27150), (905, 23340), (1086, 19450), (1167, 18100), (1556, 13575), (1810, 11670), (1945, 10860), (2172, 9725), (2334, 9050), (2715, 7780), (3620, 5835), (3890, 5430), (4525, 4668)]