18320828

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{971}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 33067440

約数和(自身を除く): 14746612

約数列:

[1, 2, 4, 53, 89, 106, 178, 212, 356, 971, 1942, 3884, 4717, 9434, 18868, 51463, 86419, 102926, 172838, 205852, 345676, 4580207, 9160414, 18320828]

約数ペア:

[(1, 18320828), (2, 9160414), (4, 4580207), (53, 345676), (89, 205852), (106, 172838), (178, 102926), (212, 86419), (356, 51463), (971, 18868), (1942, 9434), (3884, 4717)]