20809974661

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{1487}}^1\times {\mathrm{86923}}^1$

素因数の和:88440

約数の個数: 16

約数和(自身を含む): 24833839104

約数和(自身を除く): 4023864443

約数列:

[1, 7, 23, 161, 1487, 10409, 34201, 86923, 239407, 608461, 1999229, 13994603, 129254501, 904781507, 2972853523, 20809974661]

約数ペア:

[(1, 20809974661), (7, 2972853523), (23, 904781507), (161, 129254501), (1487, 13994603), (10409, 1999229), (34201, 608461), (86923, 239407)]