21290587843

素因数分解:

$7^1\times {\mathrm{307}}^1\times {\mathrm{409}}^1\times {\mathrm{24223}}^1$

素因数の和:24946

約数の個数: 16

約数和(自身を含む): 24472053760

約数和(自身を除く): 3181465917

約数列:

[1, 7, 307, 409, 2149, 2863, 24223, 125563, 169561, 878941, 7436461, 9907207, 52055227, 69350449, 3041512549, 21290587843]

約数ペア:

[(1, 21290587843), (7, 3041512549), (307, 69350449), (409, 52055227), (2149, 9907207), (2863, 7436461), (24223, 878941), (125563, 169561)]