161457891

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{64609}}^1$

素因数の和:64643

約数の個数: 24

約数和(自身を含む): 265159440

約数和(自身を除く): 103701549

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 64609, 193827, 452263, 1098353, 1356789, 3165841, 3295059, 7688471, 9497523, 23065413, 53819297, 161457891]

約数ペア:

[(1, 161457891), (3, 53819297), (7, 23065413), (17, 9497523), (21, 7688471), (49, 3295059), (51, 3165841), (119, 1356789), (147, 1098353), (357, 452263), (833, 193827), (2499, 64609)]