21851540

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{10211}}^1$

素因数の和:10327

約数の個数: 24

約数和(自身を含む): 46321632

約数和(自身を除く): 24470092

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 10211, 20422, 40844, 51055, 102110, 204220, 1092577, 2185154, 4370308, 5462885, 10925770, 21851540]

約数ペア:

[(1, 21851540), (2, 10925770), (4, 5462885), (5, 4370308), (10, 2185154), (20, 1092577), (107, 204220), (214, 102110), (428, 51055), (535, 40844), (1070, 20422), (2140, 10211)]