20348978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9907}}^1$

素因数の和:10001

約数の個数: 16

約数和(自身を含む): 33290880

約数和(自身を除く): 12941902

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 9907, 19814, 128791, 257582, 782653, 1565306, 10174489, 20348978]

約数ペア:

[(1, 20348978), (2, 10174489), (13, 1565306), (26, 782653), (79, 257582), (158, 128791), (1027, 19814), (2054, 9907)]