21639358

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1709}}^1$

素因数の和:2211

約数の個数: 16

約数和(自身を含む): 35048160

約数和(自身を除く): 13408802

約数列:

[1, 2, 13, 26, 487, 974, 1709, 3418, 6331, 12662, 22217, 44434, 832283, 1664566, 10819679, 21639358]

約数ペア:

[(1, 21639358), (2, 10819679), (13, 1664566), (26, 832283), (487, 44434), (974, 22217), (1709, 12662), (3418, 6331)]