399021242

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{419}}^1\times {\mathrm{1319}}^1$

素因数の和:1778

約数の個数: 24

約数和(自身を含む): 633679200

約数和(自身を除く): 234657958

約数列:

[1, 2, 19, 38, 361, 419, 722, 838, 1319, 2638, 7961, 15922, 25061, 50122, 151259, 302518, 476159, 552661, 952318, 1105322, 10500559, 21001118, 199510621, 399021242]

約数ペア:

[(1, 399021242), (2, 199510621), (19, 21001118), (38, 10500559), (361, 1105322), (419, 952318), (722, 552661), (838, 476159), (1319, 302518), (2638, 151259), (7961, 50122), (15922, 25061)]