21039657989

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{1913}}^1\times {\mathrm{21523}}^1$

素因数の和:23516

約数の個数: 16

約数和(自身を含む): 24388586112

約数和(自身を除く): 3348928123

約数列:

[1, 7, 73, 511, 1913, 13391, 21523, 139649, 150661, 977543, 1571179, 10998253, 41173499, 288214493, 3005665427, 21039657989]

約数ペア:

[(1, 21039657989), (7, 3005665427), (73, 288214493), (511, 41173499), (1913, 10998253), (13391, 1571179), (21523, 977543), (139649, 150661)]