21948620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35401}}^1$

素因数の和:35441

約数の個数: 24

約数和(自身を含む): 47580288

約数和(自身を除く): 25631668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35401, 70802, 141604, 177005, 354010, 708020, 1097431, 2194862, 4389724, 5487155, 10974310, 21948620]

約数ペア:

[(1, 21948620), (2, 10974310), (4, 5487155), (5, 4389724), (10, 2194862), (20, 1097431), (31, 708020), (62, 354010), (124, 177005), (155, 141604), (310, 70802), (620, 35401)]