21274888

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{503}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 21182072

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 311, 503, 622, 1006, 1244, 2012, 2488, 4024, 5287, 8551, 10574, 17102, 21148, 34204, 42296, 68408, 156433, 312866, 625732, 1251464, 2659361, 5318722, 10637444, 21274888]

約数ペア:

[(1, 21274888), (2, 10637444), (4, 5318722), (8, 2659361), (17, 1251464), (34, 625732), (68, 312866), (136, 156433), (311, 68408), (503, 42296), (622, 34204), (1006, 21148), (1244, 17102), (2012, 10574), (2488, 8551), (4024, 5287)]