20935473

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1487}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 31747968

約数和(自身を除く): 10812495

約数列:

[1, 3, 13, 19, 39, 57, 247, 361, 741, 1083, 1487, 4461, 4693, 14079, 19331, 28253, 57993, 84759, 367289, 536807, 1101867, 1610421, 6978491, 20935473]

約数ペア:

[(1, 20935473), (3, 6978491), (13, 1610421), (19, 1101867), (39, 536807), (57, 367289), (247, 84759), (361, 57993), (741, 28253), (1083, 19331), (1487, 14079), (4461, 4693)]