20005933983

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{644999}}^1$

素因数の和:645227

約数の個数: 24

約数和(自身を含む): 31176720000

約数和(自身を除く): 11170786017

約数列:

[1, 3, 7, 21, 49, 147, 211, 633, 1477, 4431, 10339, 31017, 644999, 1934997, 4514993, 13544979, 31604951, 94814853, 136094789, 408284367, 952663523, 2857990569, 6668644661, 20005933983]

約数ペア:

[(1, 20005933983), (3, 6668644661), (7, 2857990569), (21, 952663523), (49, 408284367), (147, 136094789), (211, 94814853), (633, 31604951), (1477, 13544979), (4431, 4514993), (10339, 1934997), (31017, 644999)]