217869827

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 270912000

約数和(自身を除く): 53042173

約数列:

[1, 7, 19, 49, 101, 133, 331, 343, 707, 931, 1919, 2317, 4949, 6289, 6517, 13433, 16219, 33431, 34643, 44023, 94031, 113533, 234017, 308161, 635189, 658217, 1638119, 2157127, 4446323, 11466833, 31124261, 217869827]

約数ペア:

[(1, 217869827), (7, 31124261), (19, 11466833), (49, 4446323), (101, 2157127), (133, 1638119), (331, 658217), (343, 635189), (707, 308161), (931, 234017), (1919, 113533), (2317, 94031), (4949, 44023), (6289, 34643), (6517, 33431), (13433, 16219)]