21514228

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{661}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 38554880

約数和(自身を除く): 17040652

約数列:

[1, 2, 4, 79, 103, 158, 206, 316, 412, 661, 1322, 2644, 8137, 16274, 32548, 52219, 68083, 104438, 136166, 208876, 272332, 5378557, 10757114, 21514228]

約数ペア:

[(1, 21514228), (2, 10757114), (4, 5378557), (79, 272332), (103, 208876), (158, 136166), (206, 104438), (316, 68083), (412, 52219), (661, 32548), (1322, 16274), (2644, 8137)]