19689945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2539}}^1$

素因数の和:2605

約数の個数: 32

約数和(自身を含む): 35112960

約数和(自身を除く): 15423015

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2539, 2585, 7617, 7755, 12695, 27929, 38085, 83787, 119333, 139645, 357999, 418935, 596665, 1312663, 1789995, 3937989, 6563315, 19689945]

約数ペア:

[(1, 19689945), (3, 6563315), (5, 3937989), (11, 1789995), (15, 1312663), (33, 596665), (47, 418935), (55, 357999), (141, 139645), (165, 119333), (235, 83787), (517, 38085), (705, 27929), (1551, 12695), (2539, 7755), (2585, 7617)]