21298485

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{457}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 36933120

約数和(自身を除く): 15634635

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 239, 457, 717, 1195, 1371, 2285, 3107, 3585, 5941, 6855, 9321, 15535, 17823, 29705, 46605, 89115, 109223, 327669, 546115, 1419899, 1638345, 4259697, 7099495, 21298485]

約数ペア:

[(1, 21298485), (3, 7099495), (5, 4259697), (13, 1638345), (15, 1419899), (39, 546115), (65, 327669), (195, 109223), (239, 89115), (457, 46605), (717, 29705), (1195, 17823), (1371, 15535), (2285, 9321), (3107, 6855), (3585, 5941)]