21220518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{11087}}^1$

素因数の和:11132

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 26679642

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 58, 66, 87, 174, 319, 638, 957, 1914, 11087, 22174, 33261, 66522, 121957, 243914, 321523, 365871, 643046, 731742, 964569, 1929138, 3536753, 7073506, 10610259, 21220518]

約数ペア:

[(1, 21220518), (2, 10610259), (3, 7073506), (6, 3536753), (11, 1929138), (22, 964569), (29, 731742), (33, 643046), (58, 365871), (66, 321523), (87, 243914), (174, 121957), (319, 66522), (638, 33261), (957, 22174), (1914, 11087)]