2105285

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 3169656

約数和(自身を除く): 1064371

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 661, 3185, 3305, 4627, 8593, 23135, 32389, 42965, 60151, 161945, 300755, 421057, 2105285]

約数ペア:

[(1, 2105285), (5, 421057), (7, 300755), (13, 161945), (35, 60151), (49, 42965), (65, 32389), (91, 23135), (245, 8593), (455, 4627), (637, 3305), (661, 3185)]