20757715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{7121}}^1$

素因数の和:7190

約数の個数: 16

約数和(自身を含む): 27690336

約数和(自身を除く): 6932621

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 7121, 35605, 78331, 377413, 391655, 1887065, 4151543, 20757715]

約数ペア:

[(1, 20757715), (5, 4151543), (11, 1887065), (53, 391655), (55, 377413), (265, 78331), (583, 35605), (2915, 7121)]