18430555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 26308800

約数和(自身を除く): 7878245

約数列:

[1, 5, 11, 13, 55, 65, 143, 149, 173, 715, 745, 865, 1639, 1903, 1937, 2249, 8195, 9515, 9685, 11245, 21307, 24739, 25777, 106535, 123695, 128885, 283547, 335101, 1417735, 1675505, 3686111, 18430555]

約数ペア:

[(1, 18430555), (5, 3686111), (11, 1675505), (13, 1417735), (55, 335101), (65, 283547), (143, 128885), (149, 123695), (173, 106535), (715, 25777), (745, 24739), (865, 21307), (1639, 11245), (1903, 9685), (1937, 9515), (2249, 8195)]