21866817

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 12727743

約数列:

[1, 3, 7, 21, 41, 109, 123, 233, 287, 327, 699, 763, 861, 1631, 2289, 4469, 4893, 9553, 13407, 25397, 28659, 31283, 66871, 76191, 93849, 177779, 200613, 533337, 1041277, 3123831, 7288939, 21866817]

約数ペア:

[(1, 21866817), (3, 7288939), (7, 3123831), (21, 1041277), (41, 533337), (109, 200613), (123, 177779), (233, 93849), (287, 76191), (327, 66871), (699, 31283), (763, 28659), (861, 25397), (1631, 13407), (2289, 9553), (4469, 4893)]