21413475

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5009}}^1$

素因数の和:5044

約数の個数: 36

約数和(自身を含む): 40380600

約数和(自身を除く): 18967125

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 5009, 15027, 25045, 45081, 75135, 95171, 125225, 225405, 285513, 375675, 475855, 856539, 1127025, 1427565, 2379275, 4282695, 7137825, 21413475]

約数ペア:

[(1, 21413475), (3, 7137825), (5, 4282695), (9, 2379275), (15, 1427565), (19, 1127025), (25, 856539), (45, 475855), (57, 375675), (75, 285513), (95, 225405), (171, 125225), (225, 95171), (285, 75135), (475, 45081), (855, 25045), (1425, 15027), (4275, 5009)]