20248065

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12161}}^1$

素因数の和:12209

約数の個数: 24

約数和(自身を含む): 36048168

約数和(自身を除く): 15800103

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12161, 36483, 60805, 109449, 182415, 449957, 547245, 1349871, 2249785, 4049613, 6749355, 20248065]

約数ペア:

[(1, 20248065), (3, 6749355), (5, 4049613), (9, 2249785), (15, 1349871), (37, 547245), (45, 449957), (111, 182415), (185, 109449), (333, 60805), (555, 36483), (1665, 12161)]