20995101

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 31594680

約数和(自身を除く): 10599579

約数列:

[1, 3, 9, 29, 87, 257, 261, 313, 771, 939, 2313, 2817, 7453, 9077, 22359, 27231, 67077, 80441, 81693, 241323, 723969, 2332789, 6998367, 20995101]

約数ペア:

[(1, 20995101), (3, 6998367), (9, 2332789), (29, 723969), (87, 241323), (257, 81693), (261, 80441), (313, 67077), (771, 27231), (939, 22359), (2313, 9077), (2817, 7453)]