21186964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1801}}^1$

素因数の和:1995

約数の個数: 24

約数和(自身を含む): 39507048

約数和(自身を除く): 18320084

約数列:

[1, 2, 4, 17, 34, 68, 173, 346, 692, 1801, 2941, 3602, 5882, 7204, 11764, 30617, 61234, 122468, 311573, 623146, 1246292, 5296741, 10593482, 21186964]

約数ペア:

[(1, 21186964), (2, 10593482), (4, 5296741), (17, 1246292), (34, 623146), (68, 311573), (173, 122468), (346, 61234), (692, 30617), (1801, 11764), (2941, 7204), (3602, 5882)]