21105860

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{3329}}^1$

素因数の和:3655

約数の個数: 24

約数和(自身を含む): 44475480

約数和(自身を除く): 23369620

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 3329, 6340, 6658, 13316, 16645, 33290, 66580, 1055293, 2110586, 4221172, 5276465, 10552930, 21105860]

約数ペア:

[(1, 21105860), (2, 10552930), (4, 5276465), (5, 4221172), (10, 2110586), (20, 1055293), (317, 66580), (634, 33290), (1268, 16645), (1585, 13316), (3170, 6658), (3329, 6340)]