16620513

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2693

約数の個数: 32

約数和(自身を含む): 28471296

約数和(自身を除く): 11850783

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 2647, 6279, 7941, 18529, 34411, 55587, 60881, 103233, 182643, 240877, 426167, 722631, 791453, 1278501, 2374359, 5540171, 16620513]

約数ペア:

[(1, 16620513), (3, 5540171), (7, 2374359), (13, 1278501), (21, 791453), (23, 722631), (39, 426167), (69, 240877), (91, 182643), (161, 103233), (273, 60881), (299, 55587), (483, 34411), (897, 18529), (2093, 7941), (2647, 6279)]