25521587

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 33116160

約数和(自身を除く): 7594573

約数列:

[1, 7, 13, 31, 83, 91, 109, 217, 403, 581, 763, 1079, 1417, 2573, 2821, 3379, 7553, 9047, 9919, 18011, 23653, 33449, 43927, 63329, 117611, 234143, 280457, 307489, 823277, 1963199, 3645941, 25521587]

約数ペア:

[(1, 25521587), (7, 3645941), (13, 1963199), (31, 823277), (83, 307489), (91, 280457), (109, 234143), (217, 117611), (403, 63329), (581, 43927), (763, 33449), (1079, 23653), (1417, 18011), (2573, 9919), (2821, 9047), (3379, 7553)]