21995613

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1801}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 33733440

約数和(自身を除く): 11737827

約数列:

[1, 3, 9, 23, 59, 69, 177, 207, 531, 1357, 1801, 4071, 5403, 12213, 16209, 41423, 106259, 124269, 318777, 372807, 956331, 2443957, 7331871, 21995613]

約数ペア:

[(1, 21995613), (3, 7331871), (9, 2443957), (23, 956331), (59, 372807), (69, 318777), (177, 124269), (207, 106259), (531, 41423), (1357, 16209), (1801, 12213), (4071, 5403)]