87051915

素因数分解:

$3^4\times 5^1\times {\mathrm{214943}}^1$

素因数の和:214960

約数の個数: 20

約数和(自身を含む): 156049344

約数和(自身を除く): 68997429

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 214943, 644829, 1074715, 1934487, 3224145, 5803461, 9672435, 17410383, 29017305, 87051915]

約数ペア:

[(1, 87051915), (3, 29017305), (5, 17410383), (9, 9672435), (15, 5803461), (27, 3224145), (45, 1934487), (81, 1074715), (135, 644829), (405, 214943)]