19904818

素因数分解:

$2^1\times {\mathrm{19}}^3\times {\mathrm{1451}}^1$

素因数の和:1510

約数の個数: 16

約数和(自身を含む): 31537440

約数和(自身を除く): 11632622

約数列:

[1, 2, 19, 38, 361, 722, 1451, 2902, 6859, 13718, 27569, 55138, 523811, 1047622, 9952409, 19904818]

約数ペア:

[(1, 19904818), (2, 9952409), (19, 1047622), (38, 523811), (361, 55138), (722, 27569), (1451, 13718), (2902, 6859)]