21571277

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2347}}^1$

素因数の和:2468

約数の個数: 16

約数和(自身を含む): 26823552

約数和(自身を除く): 5252275

約数列:

[1, 7, 13, 91, 101, 707, 1313, 2347, 9191, 16429, 30511, 213577, 237047, 1659329, 3081611, 21571277]

約数ペア:

[(1, 21571277), (7, 3081611), (13, 1659329), (91, 237047), (101, 213577), (707, 30511), (1313, 16429), (2347, 9191)]