18250060

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21221}}^1$

素因数の和:21273

約数の個数: 24

約数和(自身を含む): 39218256

約数和(自身を除く): 20968196

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 21221, 42442, 84884, 106105, 212210, 424420, 912503, 1825006, 3650012, 4562515, 9125030, 18250060]

約数ペア:

[(1, 18250060), (2, 9125030), (4, 4562515), (5, 3650012), (10, 1825006), (20, 912503), (43, 424420), (86, 212210), (172, 106105), (215, 84884), (430, 42442), (860, 21221)]