17893220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21821}}^1$

素因数の和:21871

約数の個数: 24

約数和(自身を含む): 38494008

約数和(自身を除く): 20600788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 21821, 43642, 87284, 109105, 218210, 436420, 894661, 1789322, 3578644, 4473305, 8946610, 17893220]

約数ペア:

[(1, 17893220), (2, 8946610), (4, 4473305), (5, 3578644), (10, 1789322), (20, 894661), (41, 436420), (82, 218210), (164, 109105), (205, 87284), (410, 43642), (820, 21821)]