21951848

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{6709}}^1$

素因数の和:7124

約数の個数: 16

約数和(自身を含む): 41266500

約数和(自身を除く): 19314652

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 6709, 13418, 26836, 53672, 2743981, 5487962, 10975924, 21951848]

約数ペア:

[(1, 21951848), (2, 10975924), (4, 5487962), (8, 2743981), (409, 53672), (818, 26836), (1636, 13418), (3272, 6709)]