128731414

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{399787}}^1$

素因数の和:399819

約数の個数: 16

約数和(自身を含む): 230277888

約数和(自身を除く): 101546474

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 399787, 799574, 2798509, 5597018, 9195101, 18390202, 64365707, 128731414]

約数ペア:

[(1, 128731414), (2, 64365707), (7, 18390202), (14, 9195101), (23, 5597018), (46, 2798509), (161, 799574), (322, 399787)]