21639350

素因数分解:

$2^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1597}}^1$

素因数の和:1880

約数の個数: 24

約数和(自身を含む): 40423008

約数和(自身を除く): 18783658

約数列:

[1, 2, 5, 10, 25, 50, 271, 542, 1355, 1597, 2710, 3194, 6775, 7985, 13550, 15970, 39925, 79850, 432787, 865574, 2163935, 4327870, 10819675, 21639350]

約数ペア:

[(1, 21639350), (2, 10819675), (5, 4327870), (10, 2163935), (25, 865574), (50, 432787), (271, 79850), (542, 39925), (1355, 15970), (1597, 13550), (2710, 7985), (3194, 6775)]