21599355

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 35691840

約数和(自身を除く): 14092485

約数列:

[1, 3, 5, 15, 53, 101, 159, 265, 269, 303, 505, 795, 807, 1345, 1515, 4035, 5353, 14257, 16059, 26765, 27169, 42771, 71285, 80295, 81507, 135845, 213855, 407535, 1439957, 4319871, 7199785, 21599355]

約数ペア:

[(1, 21599355), (3, 7199785), (5, 4319871), (15, 1439957), (53, 407535), (101, 213855), (159, 135845), (265, 81507), (269, 80295), (303, 71285), (505, 42771), (795, 27169), (807, 26765), (1345, 16059), (1515, 14257), (4035, 5353)]