20121635871

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{54713}}^1$

素因数の和:55032

約数の個数: 32

約数和(自身を含む): 30491017920

約数和(自身を除く): 10369382049

約数列:

[1, 3, 9, 27, 53, 159, 257, 477, 771, 1431, 2313, 6939, 13621, 40863, 54713, 122589, 164139, 367767, 492417, 1477251, 2899789, 8699367, 14061241, 26098101, 42183723, 78294303, 126551169, 379653507, 745245773, 2235737319, 6707211957, 20121635871]

約数ペア:

[(1, 20121635871), (3, 6707211957), (9, 2235737319), (27, 745245773), (53, 379653507), (159, 126551169), (257, 78294303), (477, 42183723), (771, 26098101), (1431, 14061241), (2313, 8699367), (6939, 2899789), (13621, 1477251), (40863, 492417), (54713, 367767), (122589, 164139)]