1388975021

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{3617}}^1$

素因数の和:4109

約数の個数: 24

約数和(自身を含む): 1714975416

約数和(自身を除く): 326000395

約数列:

[1, 7, 17, 49, 119, 461, 833, 3227, 3617, 7837, 22589, 25319, 54859, 61489, 177233, 384013, 430423, 1667437, 3012961, 11672059, 28346429, 81704413, 198425003, 1388975021]

約数ペア:

[(1, 1388975021), (7, 198425003), (17, 81704413), (49, 28346429), (119, 11672059), (461, 3012961), (833, 1667437), (3227, 430423), (3617, 384013), (7837, 177233), (22589, 61489), (25319, 54859)]