21390052

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1901}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 39143160

約数和(自身を除く): 17753108

約数列:

[1, 2, 4, 29, 58, 97, 116, 194, 388, 1901, 2813, 3802, 5626, 7604, 11252, 55129, 110258, 184397, 220516, 368794, 737588, 5347513, 10695026, 21390052]

約数ペア:

[(1, 21390052), (2, 10695026), (4, 5347513), (29, 737588), (58, 368794), (97, 220516), (116, 184397), (194, 110258), (388, 55129), (1901, 11252), (2813, 7604), (3802, 5626)]