18162225

素因数分解:

$3^4\times 5^2\times {\mathrm{8969}}^1$

素因数の和:8991

約数の個数: 30

約数和(自身を含む): 33646470

約数和(自身を除く): 15484245

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 8969, 26907, 44845, 80721, 134535, 224225, 242163, 403605, 672675, 726489, 1210815, 2018025, 3632445, 6054075, 18162225]

約数ペア:

[(1, 18162225), (3, 6054075), (5, 3632445), (9, 2018025), (15, 1210815), (25, 726489), (27, 672675), (45, 403605), (75, 242163), (81, 224225), (135, 134535), (225, 80721), (405, 44845), (675, 26907), (2025, 8969)]