21428628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137363}}^1$

素因数の和:137383

約数の個数: 24

約数和(自身を含む): 53846688

約数和(自身を除く): 32418060

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137363, 274726, 412089, 549452, 824178, 1648356, 1785719, 3571438, 5357157, 7142876, 10714314, 21428628]

約数ペア:

[(1, 21428628), (2, 10714314), (3, 7142876), (4, 5357157), (6, 3571438), (12, 1785719), (13, 1648356), (26, 824178), (39, 549452), (52, 412089), (78, 274726), (156, 137363)]