31997277

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:334

約数の個数: 36

約数和(自身を含む): 50767860

約数和(自身を除く): 18770583

約数列:

[1, 3, 9, 13, 39, 109, 117, 169, 193, 327, 507, 579, 981, 1417, 1521, 1737, 2509, 4251, 7527, 12753, 18421, 21037, 22581, 32617, 55263, 63111, 97851, 165789, 189333, 273481, 293553, 820443, 2461329, 3555253, 10665759, 31997277]

約数ペア:

[(1, 31997277), (3, 10665759), (9, 3555253), (13, 2461329), (39, 820443), (109, 293553), (117, 273481), (169, 189333), (193, 165789), (327, 97851), (507, 63111), (579, 55263), (981, 32617), (1417, 22581), (1521, 21037), (1737, 18421), (2509, 12753), (4251, 7527)]