21687510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55609}}^1$

素因数の和:55632

約数の個数: 32

約数和(自身を含む): 56054880

約数和(自身を除く): 34367370

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55609, 111218, 166827, 278045, 333654, 556090, 722917, 834135, 1445834, 1668270, 2168751, 3614585, 4337502, 7229170, 10843755, 21687510]

約数ペア:

[(1, 21687510), (2, 10843755), (3, 7229170), (5, 4337502), (6, 3614585), (10, 2168751), (13, 1668270), (15, 1445834), (26, 834135), (30, 722917), (39, 556090), (65, 333654), (78, 278045), (130, 166827), (195, 111218), (390, 55609)]