1640680641

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{23279}}^1$

素因数の和:23517

約数の個数: 24

約数和(自身を含む): 2440488960

約数和(自身を除く): 799808319

約数列:

[1, 3, 9, 41, 123, 191, 369, 573, 1719, 7831, 23279, 23493, 69837, 70479, 209511, 954439, 2863317, 4446289, 8589951, 13338867, 40016601, 182297849, 546893547, 1640680641]

約数ペア:

[(1, 1640680641), (3, 546893547), (9, 182297849), (41, 40016601), (123, 13338867), (191, 8589951), (369, 4446289), (573, 2863317), (1719, 954439), (7831, 209511), (23279, 70479), (23493, 69837)]