21028935490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29618219}}^1$

素因数の和:29618297

約数の個数: 16

約数和(自身を含む): 38385213120

約数和(自身を除く): 17356277630

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29618219, 59236438, 148091095, 296182190, 2102893549, 4205787098, 10514467745, 21028935490]

約数ペア:

[(1, 21028935490), (2, 10514467745), (5, 4205787098), (10, 2102893549), (71, 296182190), (142, 148091095), (355, 59236438), (710, 29618219)]