20913697154

素因数分解:

$2^1\times 7^3\times {\mathrm{30486439}}^1$

素因数の和:30486462

約数の個数: 16

約数和(自身を含む): 36583728000

約数和(自身を除く): 15670030846

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 30486439, 60972878, 213405073, 426810146, 1493835511, 2987671022, 10456848577, 20913697154]

約数ペア:

[(1, 20913697154), (2, 10456848577), (7, 2987671022), (14, 1493835511), (49, 426810146), (98, 213405073), (343, 60972878), (686, 30486439)]