721342623

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{90089}}^1$

素因数の和:90266

約数の個数: 16

約数和(自身を含む): 1024863840

約数和(自身を除く): 303521217

約数列:

[1, 3, 17, 51, 157, 471, 2669, 8007, 90089, 270267, 1531513, 4594539, 14143973, 42431919, 240447541, 721342623]

約数ペア:

[(1, 721342623), (3, 240447541), (17, 42431919), (51, 14143973), (157, 4594539), (471, 1531513), (2669, 270267), (8007, 90089)]