21331818

素因数分解:

$2^1\times 3^2\times {\mathrm{977}}^1\times {\mathrm{1213}}^1$

素因数の和:2198

約数の個数: 24

約数和(自身を含む): 46304388

約数和(自身を除く): 24972570

約数列:

[1, 2, 3, 6, 9, 18, 977, 1213, 1954, 2426, 2931, 3639, 5862, 7278, 8793, 10917, 17586, 21834, 1185101, 2370202, 3555303, 7110606, 10665909, 21331818]

約数ペア:

[(1, 21331818), (2, 10665909), (3, 7110606), (6, 3555303), (9, 2370202), (18, 1185101), (977, 21834), (1213, 17586), (1954, 10917), (2426, 8793), (2931, 7278), (3639, 5862)]