207913281

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^2\times {\mathrm{211}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 297052704

約数和(自身を除く): 89139423

約数列:

[1, 3, 17, 51, 139, 211, 417, 633, 2363, 3587, 7089, 10761, 19321, 29329, 57963, 87987, 328457, 498593, 985371, 1495779, 4076731, 12230193, 69304427, 207913281]

約数ペア:

[(1, 207913281), (3, 69304427), (17, 12230193), (51, 4076731), (139, 1495779), (211, 985371), (417, 498593), (633, 328457), (2363, 87987), (3587, 57963), (7089, 29329), (10761, 19321)]