18727489

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 22369248

約数和(自身を除く): 3641759

約数列:

[1, 11, 17, 43, 137, 187, 289, 473, 731, 1507, 2329, 3179, 5891, 8041, 12427, 25619, 39593, 64801, 100147, 136697, 435523, 1101617, 1702499, 18727489]

約数ペア:

[(1, 18727489), (11, 1702499), (17, 1101617), (43, 435523), (137, 136697), (187, 100147), (289, 64801), (473, 39593), (731, 25619), (1507, 12427), (2329, 8041), (3179, 5891)]