20399324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2953}}^1$

素因数の和:3125

約数の個数: 24

約数和(自身を含む): 39205488

約数和(自身を除く): 18806164

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 2953, 3454, 5906, 6908, 11812, 32483, 64966, 129932, 463621, 927242, 1854484, 5099831, 10199662, 20399324]

約数ペア:

[(1, 20399324), (2, 10199662), (4, 5099831), (11, 1854484), (22, 927242), (44, 463621), (157, 129932), (314, 64966), (628, 32483), (1727, 11812), (2953, 6908), (3454, 5906)]