19752249

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 30761856

約数和(自身を除く): 11009607

約数列:

[1, 3, 11, 17, 33, 51, 137, 187, 257, 411, 561, 771, 1507, 2329, 2827, 4369, 4521, 6987, 8481, 13107, 25619, 35209, 48059, 76857, 105627, 144177, 387299, 598553, 1161897, 1795659, 6584083, 19752249]

約数ペア:

[(1, 19752249), (3, 6584083), (11, 1795659), (17, 1161897), (33, 598553), (51, 387299), (137, 144177), (187, 105627), (257, 76857), (411, 48059), (561, 35209), (771, 25619), (1507, 13107), (2329, 8481), (2827, 6987), (4369, 4521)]