21568486804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{283795879}}^1$

素因数の和:283795902

約数の個数: 12

約数和(自身を含む): 39731423200

約数和(自身を除く): 18162936396

約数列:

[1, 2, 4, 19, 38, 76, 283795879, 567591758, 1135183516, 5392121701, 10784243402, 21568486804]

約数ペア:

[(1, 21568486804), (2, 10784243402), (4, 5392121701), (19, 1135183516), (38, 567591758), (76, 283795879)]