20175279999

素因数分解:

$3^1\times 7^1\times {\mathrm{15053}}^1\times {\mathrm{63823}}^1$

素因数の和:78886

約数の個数: 16

約数和(自身を含む): 30745807872

約数和(自身を除く): 10570527873

約数列:

[1, 3, 7, 21, 15053, 45159, 63823, 105371, 191469, 316113, 446761, 1340283, 960727619, 2882182857, 6725093333, 20175279999]

約数ペア:

[(1, 20175279999), (3, 6725093333), (7, 2882182857), (21, 960727619), (15053, 1340283), (45159, 446761), (63823, 316113), (105371, 191469)]