21008025

素因数分解:

$3^3\times 5^2\times {\mathrm{31123}}^1$

素因数の和:31142

約数の個数: 24

約数和(自身を含む): 38593760

約数和(自身を除く): 17585735

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31123, 93369, 155615, 280107, 466845, 778075, 840321, 1400535, 2334225, 4201605, 7002675, 21008025]

約数ペア:

[(1, 21008025), (3, 7002675), (5, 4201605), (9, 2334225), (15, 1400535), (25, 840321), (27, 778075), (45, 466845), (75, 280107), (135, 155615), (225, 93369), (675, 31123)]