128219917

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{16253}}^1$

素因数の和:16297

約数の個数: 16

約数和(自身を含む): 156038400

約数和(自身を除く): 27818483

約数列:

[1, 7, 23, 49, 161, 343, 1127, 7889, 16253, 113771, 373819, 796397, 2616733, 5574779, 18317131, 128219917]

約数ペア:

[(1, 128219917), (7, 18317131), (23, 5574779), (49, 2616733), (161, 796397), (343, 373819), (1127, 113771), (7889, 16253)]