20862808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{857}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 20835992

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 179, 358, 716, 857, 1432, 1714, 3043, 3428, 6086, 6856, 12172, 14569, 24344, 29138, 58276, 116552, 153403, 306806, 613612, 1227224, 2607851, 5215702, 10431404, 20862808]

約数ペア:

[(1, 20862808), (2, 10431404), (4, 5215702), (8, 2607851), (17, 1227224), (34, 613612), (68, 306806), (136, 153403), (179, 116552), (358, 58276), (716, 29138), (857, 24344), (1432, 14569), (1714, 12172), (3043, 6856), (3428, 6086)]