2021918717

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{203843}}^1$

素因数の和:203972

約数の個数: 16

約数和(自身を含む): 2511358080

約数和(自身を除く): 489439363

約数列:

[1, 7, 13, 91, 109, 763, 1417, 9919, 203843, 1426901, 2649959, 18549713, 22218887, 155532209, 288845531, 2021918717]

約数ペア:

[(1, 2021918717), (7, 288845531), (13, 155532209), (91, 22218887), (109, 18549713), (763, 2649959), (1417, 1426901), (9919, 203843)]