21941690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2609}}^1$

素因数の和:2674

約数の個数: 24

約数和(自身を含む): 40919580

約数和(自身を除く): 18977890

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 841, 1682, 2609, 4205, 5218, 8410, 13045, 26090, 75661, 151322, 378305, 756610, 2194169, 4388338, 10970845, 21941690]

約数ペア:

[(1, 21941690), (2, 10970845), (5, 4388338), (10, 2194169), (29, 756610), (58, 378305), (145, 151322), (290, 75661), (841, 26090), (1682, 13045), (2609, 8410), (4205, 5218)]