39890403

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 68685760

約数和(自身を除く): 28795357

約数列:

[1, 3, 7, 9, 21, 37, 63, 109, 111, 157, 259, 327, 333, 471, 763, 777, 981, 1099, 1413, 2289, 2331, 3297, 4033, 5809, 6867, 9891, 12099, 17113, 17427, 28231, 36297, 40663, 51339, 52281, 84693, 119791, 121989, 154017, 254079, 359373, 365967, 633181, 1078119, 1899543, 4432267, 5698629, 13296801, 39890403]

約数ペア:

[(1, 39890403), (3, 13296801), (7, 5698629), (9, 4432267), (21, 1899543), (37, 1078119), (63, 633181), (109, 365967), (111, 359373), (157, 254079), (259, 154017), (327, 121989), (333, 119791), (471, 84693), (763, 52281), (777, 51339), (981, 40663), (1099, 36297), (1413, 28231), (2289, 17427), (2331, 17113), (3297, 12099), (4033, 9891), (5809, 6867)]