20794921

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2437}}^1$

素因数の和:2520

約数の個数: 16

約数和(自身を含む): 25277184

約数和(自身を除く): 4482263

約数列:

[1, 7, 23, 53, 161, 371, 1219, 2437, 8533, 17059, 56051, 129161, 392357, 904127, 2970703, 20794921]

約数ペア:

[(1, 20794921), (7, 2970703), (23, 904127), (53, 392357), (161, 129161), (371, 56051), (1219, 17059), (2437, 8533)]