21310516

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1931}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 17638604

約数列:

[1, 2, 4, 31, 62, 89, 124, 178, 356, 1931, 2759, 3862, 5518, 7724, 11036, 59861, 119722, 171859, 239444, 343718, 687436, 5327629, 10655258, 21310516]

約数ペア:

[(1, 21310516), (2, 10655258), (4, 5327629), (31, 687436), (62, 343718), (89, 239444), (124, 171859), (178, 119722), (356, 59861), (1931, 11036), (2759, 7724), (3862, 5518)]