19118025

素因数分解:

$3^6\times 5^2\times {\mathrm{1049}}^1$

素因数の和:1077

約数の個数: 42

約数和(自身を含む): 35577150

約数和(自身を除く): 16459125

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1049, 1215, 2025, 3147, 3645, 5245, 6075, 9441, 15735, 18225, 26225, 28323, 47205, 78675, 84969, 141615, 236025, 254907, 424845, 708075, 764721, 1274535, 2124225, 3823605, 6372675, 19118025]

約数ペア:

[(1, 19118025), (3, 6372675), (5, 3823605), (9, 2124225), (15, 1274535), (25, 764721), (27, 708075), (45, 424845), (75, 254907), (81, 236025), (135, 141615), (225, 84969), (243, 78675), (405, 47205), (675, 28323), (729, 26225), (1049, 18225), (1215, 15735), (2025, 9441), (3147, 6075), (3645, 5245)]