17640808420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21513181}}^1$

素因数の和:21513231

約数の個数: 24

約数和(自身を含む): 37949253048

約数和(自身を除く): 20308444628

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 21513181, 43026362, 86052724, 107565905, 215131810, 430263620, 882040421, 1764080842, 3528161684, 4410202105, 8820404210, 17640808420]

約数ペア:

[(1, 17640808420), (2, 8820404210), (4, 4410202105), (5, 3528161684), (10, 1764080842), (20, 882040421), (41, 430263620), (82, 215131810), (164, 107565905), (205, 86052724), (410, 43026362), (820, 21513181)]