21131524

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{379}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 16789436

約数列:

[1, 2, 4, 53, 106, 212, 263, 379, 526, 758, 1052, 1516, 13939, 20087, 27878, 40174, 55756, 80348, 99677, 199354, 398708, 5282881, 10565762, 21131524]

約数ペア:

[(1, 21131524), (2, 10565762), (4, 5282881), (53, 398708), (106, 199354), (212, 99677), (263, 80348), (379, 55756), (526, 40174), (758, 27878), (1052, 20087), (1516, 13939)]