21746475

素因数分解:

$3^4\times 5^2\times {\mathrm{10739}}^1$

素因数の和:10761

約数の個数: 30

約数和(自身を含む): 40285740

約数和(自身を除く): 18539265

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10739, 32217, 53695, 96651, 161085, 268475, 289953, 483255, 805425, 869859, 1449765, 2416275, 4349295, 7248825, 21746475]

約数ペア:

[(1, 21746475), (3, 7248825), (5, 4349295), (9, 2416275), (15, 1449765), (25, 869859), (27, 805425), (45, 483255), (75, 289953), (81, 268475), (135, 161085), (225, 96651), (405, 53695), (675, 32217), (2025, 10739)]