31145913

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{2539}}^1$

素因数の和:2621

約数の個数: 24

約数和(自身を含む): 47548800

約数和(自身を除く): 16402887

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 2539, 4089, 7617, 12267, 22851, 73631, 119333, 220893, 357999, 662679, 1073997, 3460657, 10381971, 31145913]

約数ペア:

[(1, 31145913), (3, 10381971), (9, 3460657), (29, 1073997), (47, 662679), (87, 357999), (141, 220893), (261, 119333), (423, 73631), (1363, 22851), (2539, 12267), (4089, 7617)]