21815002

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{52189}}^1$

素因数の和:52221

約数の個数: 16

約数和(自身を含む): 37576800

約数和(自身を除く): 15761798

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 52189, 104378, 574079, 991591, 1148158, 1983182, 10907501, 21815002]

約数ペア:

[(1, 21815002), (2, 10907501), (11, 1983182), (19, 1148158), (22, 991591), (38, 574079), (209, 104378), (418, 52189)]