18883995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{857}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 32864832

約数和(自身を除く): 13980837

約数列:

[1, 3, 5, 13, 15, 39, 65, 113, 195, 339, 565, 857, 1469, 1695, 2571, 4285, 4407, 7345, 11141, 12855, 22035, 33423, 55705, 96841, 167115, 290523, 484205, 1258933, 1452615, 3776799, 6294665, 18883995]

約数ペア:

[(1, 18883995), (3, 6294665), (5, 3776799), (13, 1452615), (15, 1258933), (39, 484205), (65, 290523), (113, 167115), (195, 96841), (339, 55705), (565, 33423), (857, 22035), (1469, 12855), (1695, 11141), (2571, 7345), (4285, 4407)]