21264525

素因数分解:

$3^4\times 5^2\times {\mathrm{10501}}^1$

素因数の和:10523

約数の個数: 30

約数和(自身を含む): 39393002

約数和(自身を除く): 18128477

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10501, 31503, 52505, 94509, 157515, 262525, 283527, 472545, 787575, 850581, 1417635, 2362725, 4252905, 7088175, 21264525]

約数ペア:

[(1, 21264525), (3, 7088175), (5, 4252905), (9, 2362725), (15, 1417635), (25, 850581), (27, 787575), (45, 472545), (75, 283527), (81, 262525), (135, 157515), (225, 94509), (405, 52505), (675, 31503), (2025, 10501)]