21223551490

素因数分解:

$2^1\times 5^1\times {\mathrm{29209}}^1\times {\mathrm{72661}}^1$

素因数の和:101877

約数の個数: 16

約数和(自身を含む): 38204226360

約数和(自身を除く): 16980674870

約数列:

[1, 2, 5, 10, 29209, 58418, 72661, 145322, 146045, 292090, 363305, 726610, 2122355149, 4244710298, 10611775745, 21223551490]

約数ペア:

[(1, 21223551490), (2, 10611775745), (5, 4244710298), (10, 2122355149), (29209, 726610), (58418, 363305), (72661, 292090), (145322, 146045)]