20027619

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{439}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 29995680

約数和(自身を除く): 9968061

約数列:

[1, 3, 9, 37, 111, 137, 333, 411, 439, 1233, 1317, 3951, 5069, 15207, 16243, 45621, 48729, 60143, 146187, 180429, 541287, 2225291, 6675873, 20027619]

約数ペア:

[(1, 20027619), (3, 6675873), (9, 2225291), (37, 541287), (111, 180429), (137, 146187), (333, 60143), (411, 48729), (439, 45621), (1233, 16243), (1317, 15207), (3951, 5069)]