21319818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{617}}^1$

素因数の和:1078

約数の個数: 32

約数和(自身を含む): 46097856

約数和(自身を除く): 24778038

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 443, 617, 886, 1234, 1329, 1851, 2658, 3702, 5759, 8021, 11518, 16042, 17277, 24063, 34554, 48126, 273331, 546662, 819993, 1639986, 3553303, 7106606, 10659909, 21319818]

約数ペア:

[(1, 21319818), (2, 10659909), (3, 7106606), (6, 3553303), (13, 1639986), (26, 819993), (39, 546662), (78, 273331), (443, 48126), (617, 34554), (886, 24063), (1234, 17277), (1329, 16042), (1851, 11518), (2658, 8021), (3702, 5759)]