201997901

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1\times {\mathrm{1289}}^1$

素因数の和:1724

約数の個数: 16

約数和(自身を含む): 235461120

約数和(自身を除く): 33463219

約数列:

[1, 7, 61, 367, 427, 1289, 2569, 9023, 22387, 78629, 156709, 473063, 550403, 3311441, 28856843, 201997901]

約数ペア:

[(1, 201997901), (7, 28856843), (61, 3311441), (367, 550403), (427, 473063), (1289, 156709), (2569, 78629), (9023, 22387)]