18705664

素因数分解:

$2^8\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:926

約数の個数: 36

約数和(自身を含む): 37803780

約数和(自身を除く): 19098116

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 256, 356, 712, 821, 1424, 1642, 2848, 3284, 5696, 6568, 11392, 13136, 22784, 26272, 52544, 73069, 105088, 146138, 210176, 292276, 584552, 1169104, 2338208, 4676416, 9352832, 18705664]

約数ペア:

[(1, 18705664), (2, 9352832), (4, 4676416), (8, 2338208), (16, 1169104), (32, 584552), (64, 292276), (89, 210176), (128, 146138), (178, 105088), (256, 73069), (356, 52544), (712, 26272), (821, 22784), (1424, 13136), (1642, 11392), (2848, 6568), (3284, 5696)]