28620459

素因数分解:

$3^4\times 7^2\times {\mathrm{7211}}^1$

素因数の和:7237

約数の個数: 30

約数和(自身を含む): 49741164

約数和(自身を除く): 21120705

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 7211, 21633, 50477, 64899, 151431, 194697, 353339, 454293, 584091, 1060017, 1362879, 3180051, 4088637, 9540153, 28620459]

約数ペア:

[(1, 28620459), (3, 9540153), (7, 4088637), (9, 3180051), (21, 1362879), (27, 1060017), (49, 584091), (63, 454293), (81, 353339), (147, 194697), (189, 151431), (441, 64899), (567, 50477), (1323, 21633), (3969, 7211)]