18686804

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{12941}}^1$

素因数の和:12983

約数の個数: 18

約数和(自身を含む): 34516314

約数和(自身を除く): 15829510

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 12941, 25882, 51764, 245879, 491758, 983516, 4671701, 9343402, 18686804]

約数ペア:

[(1, 18686804), (2, 9343402), (4, 4671701), (19, 983516), (38, 491758), (76, 245879), (361, 51764), (722, 25882), (1444, 12941)]