18940815

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22153}}^1$

素因数の和:22183

約数の個数: 24

約数和(自身を含む): 34560240

約数和(自身を除く): 15619425

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 22153, 66459, 110765, 199377, 332295, 420907, 996885, 1262721, 2104535, 3788163, 6313605, 18940815]

約数ペア:

[(1, 18940815), (3, 6313605), (5, 3788163), (9, 2104535), (15, 1262721), (19, 996885), (45, 420907), (57, 332295), (95, 199377), (171, 110765), (285, 66459), (855, 22153)]