208548909

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{3989}}^1$

素因数の和:4189

約数の個数: 24

約数和(自身を含む): 311427480

約数和(自身を除く): 102878571

約数列:

[1, 3, 9, 37, 111, 157, 333, 471, 1413, 3989, 5809, 11967, 17427, 35901, 52281, 147593, 442779, 626273, 1328337, 1878819, 5636457, 23172101, 69516303, 208548909]

約数ペア:

[(1, 208548909), (3, 69516303), (9, 23172101), (37, 5636457), (111, 1878819), (157, 1328337), (333, 626273), (471, 442779), (1413, 147593), (3989, 52281), (5809, 35901), (11967, 17427)]