21557588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5839}}^1$

素因数の和:5927

約数の個数: 24

約数和(自身を含む): 41207040

約数和(自身を除く): 19649452

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5839, 11678, 23356, 75907, 151814, 303628, 414569, 829138, 1658276, 5389397, 10778794, 21557588]

約数ペア:

[(1, 21557588), (2, 10778794), (4, 5389397), (13, 1658276), (26, 829138), (52, 414569), (71, 303628), (142, 151814), (284, 75907), (923, 23356), (1846, 11678), (3692, 5839)]