21620925

素因数分解:

$3^5\times 5^2\times {\mathrm{3559}}^1$

素因数の和:3584

約数の個数: 36

約数和(自身を含む): 40171040

約数和(自身を除く): 18550115

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3559, 6075, 10677, 17795, 32031, 53385, 88975, 96093, 160155, 266925, 288279, 480465, 800775, 864837, 1441395, 2402325, 4324185, 7206975, 21620925]

約数ペア:

[(1, 21620925), (3, 7206975), (5, 4324185), (9, 2402325), (15, 1441395), (25, 864837), (27, 800775), (45, 480465), (75, 288279), (81, 266925), (135, 160155), (225, 96093), (243, 88975), (405, 53385), (675, 32031), (1215, 17795), (2025, 10677), (3559, 6075)]