21799125

素因数分解:

$3^4\times 5^3\times {\mathrm{2153}}^1$

素因数の和:2180

約数の個数: 40

約数和(自身を含む): 40658904

約数和(自身を除く): 18859779

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 2025, 2153, 3375, 6459, 10125, 10765, 19377, 32295, 53825, 58131, 96885, 161475, 174393, 269125, 290655, 484425, 807375, 871965, 1453275, 2422125, 4359825, 7266375, 21799125]

約数ペア:

[(1, 21799125), (3, 7266375), (5, 4359825), (9, 2422125), (15, 1453275), (25, 871965), (27, 807375), (45, 484425), (75, 290655), (81, 269125), (125, 174393), (135, 161475), (225, 96885), (375, 58131), (405, 53825), (675, 32295), (1125, 19377), (2025, 10765), (2153, 10125), (3375, 6459)]