18729225

素因数分解:

$3^5\times 5^2\times {\mathrm{3083}}^1$

素因数の和:3108

約数の個数: 36

約数和(自身を含む): 34799856

約数和(自身を除く): 16070631

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3083, 6075, 9249, 15415, 27747, 46245, 77075, 83241, 138735, 231225, 249723, 416205, 693675, 749169, 1248615, 2081025, 3745845, 6243075, 18729225]

約数ペア:

[(1, 18729225), (3, 6243075), (5, 3745845), (9, 2081025), (15, 1248615), (25, 749169), (27, 693675), (45, 416205), (75, 249723), (81, 231225), (135, 138735), (225, 83241), (243, 77075), (405, 46245), (675, 27747), (1215, 15415), (2025, 9249), (3083, 6075)]