21310438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{1249}}^1$

素因数の和:1719

約数の個数: 16

約数和(自身を含む): 33750000

約数和(自身を除く): 12439562

約数列:

[1, 2, 19, 38, 449, 898, 1249, 2498, 8531, 17062, 23731, 47462, 560801, 1121602, 10655219, 21310438]

約数ペア:

[(1, 21310438), (2, 10655219), (19, 1121602), (38, 560801), (449, 47462), (898, 23731), (1249, 17062), (2498, 8531)]