21182175

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4483}}^1$

素因数の和:4509

約数の個数: 48

約数和(自身を含む): 44481280

約数和(自身を除く): 23299105

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4483, 4725, 13449, 22415, 31381, 40347, 67245, 94143, 112075, 121041, 156905, 201735, 282429, 336225, 470715, 605205, 784525, 847287, 1008675, 1412145, 2353575, 3026025, 4236435, 7060725, 21182175]

約数ペア:

[(1, 21182175), (3, 7060725), (5, 4236435), (7, 3026025), (9, 2353575), (15, 1412145), (21, 1008675), (25, 847287), (27, 784525), (35, 605205), (45, 470715), (63, 336225), (75, 282429), (105, 201735), (135, 156905), (175, 121041), (189, 112075), (225, 94143), (315, 67245), (525, 40347), (675, 31381), (945, 22415), (1575, 13449), (4483, 4725)]