639156959

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{40927}}^1$

素因数の和:41054

約数の個数: 16

約数和(自身を含む): 770101248

約数和(自身を除く): 130944289

約数列:

[1, 7, 23, 97, 161, 679, 2231, 15617, 40927, 286489, 941321, 3969919, 6589247, 27789433, 91308137, 639156959]

約数ペア:

[(1, 639156959), (7, 91308137), (23, 27789433), (97, 6589247), (161, 3969919), (679, 941321), (2231, 286489), (15617, 40927)]