21115510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2753}}^1$

素因数の和:2832

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 20524970

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 295, 590, 767, 1534, 2753, 3835, 5506, 7670, 13765, 27530, 35789, 71578, 162427, 178945, 324854, 357890, 812135, 1624270, 2111551, 4223102, 10557755, 21115510]

約数ペア:

[(1, 21115510), (2, 10557755), (5, 4223102), (10, 2111551), (13, 1624270), (26, 812135), (59, 357890), (65, 324854), (118, 178945), (130, 162427), (295, 71578), (590, 35789), (767, 27530), (1534, 13765), (2753, 7670), (3835, 5506)]