21663564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138869}}^1$

素因数の和:138889

約数の個数: 24

約数和(自身を含む): 54437040

約数和(自身を除く): 32773476

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138869, 277738, 416607, 555476, 833214, 1666428, 1805297, 3610594, 5415891, 7221188, 10831782, 21663564]

約数ペア:

[(1, 21663564), (2, 10831782), (3, 7221188), (4, 5415891), (6, 3610594), (12, 1805297), (13, 1666428), (26, 833214), (39, 555476), (52, 416607), (78, 277738), (156, 138869)]