20216968

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 18559352

約数列:

[1, 2, 4, 8, 101, 131, 191, 202, 262, 382, 404, 524, 764, 808, 1048, 1528, 13231, 19291, 25021, 26462, 38582, 50042, 52924, 77164, 100084, 105848, 154328, 200168, 2527121, 5054242, 10108484, 20216968]

約数ペア:

[(1, 20216968), (2, 10108484), (4, 5054242), (8, 2527121), (101, 200168), (131, 154328), (191, 105848), (202, 100084), (262, 77164), (382, 52924), (404, 50042), (524, 38582), (764, 26462), (808, 25021), (1048, 19291), (1528, 13231)]