21595640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49081}}^1$

素因数の和:49103

約数の個数: 32

約数和(自身を含む): 53008560

約数和(自身を除く): 31412920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49081, 98162, 196324, 245405, 392648, 490810, 539891, 981620, 1079782, 1963240, 2159564, 2699455, 4319128, 5398910, 10797820, 21595640]

約数ペア:

[(1, 21595640), (2, 10797820), (4, 5398910), (5, 4319128), (8, 2699455), (10, 2159564), (11, 1963240), (20, 1079782), (22, 981620), (40, 539891), (44, 490810), (55, 392648), (88, 245405), (110, 196324), (220, 98162), (440, 49081)]