20877903

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1471}}^1$

素因数の和:1579

約数の個数: 24

約数和(自身を含む): 32148480

約数和(自身を除く): 11270577

約数列:

[1, 3, 9, 19, 57, 83, 171, 249, 747, 1471, 1577, 4413, 4731, 13239, 14193, 27949, 83847, 122093, 251541, 366279, 1098837, 2319767, 6959301, 20877903]

約数ペア:

[(1, 20877903), (3, 6959301), (9, 2319767), (19, 1098837), (57, 366279), (83, 251541), (171, 122093), (249, 83847), (747, 27949), (1471, 14193), (1577, 13239), (4413, 4731)]