21528121

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 2231879

約数列:

[1, 19, 29, 89, 439, 551, 1691, 2581, 8341, 12731, 39071, 49039, 241889, 742349, 1133059, 21528121]

約数ペア:

[(1, 21528121), (19, 1133059), (29, 742349), (89, 241889), (439, 49039), (551, 39071), (1691, 12731), (2581, 8341)]