21152510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{683}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 40383360

約数和(自身を除く): 19230850

約数列:

[1, 2, 5, 10, 19, 38, 95, 163, 190, 326, 683, 815, 1366, 1630, 3097, 3415, 6194, 6830, 12977, 15485, 25954, 30970, 64885, 111329, 129770, 222658, 556645, 1113290, 2115251, 4230502, 10576255, 21152510]

約数ペア:

[(1, 21152510), (2, 10576255), (5, 4230502), (10, 2115251), (19, 1113290), (38, 556645), (95, 222658), (163, 129770), (190, 111329), (326, 64885), (683, 30970), (815, 25954), (1366, 15485), (1630, 12977), (3097, 6830), (3415, 6194)]