20628578

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{1063}}^1$

素因数の和:1409

約数の個数: 16

約数和(自身を含む): 32073216

約数和(自身を除く): 11444638

約数列:

[1, 2, 31, 62, 313, 626, 1063, 2126, 9703, 19406, 32953, 65906, 332719, 665438, 10314289, 20628578]

約数ペア:

[(1, 20628578), (2, 10314289), (31, 665438), (62, 332719), (313, 65906), (626, 32953), (1063, 19406), (2126, 9703)]