20496815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{823}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 26163648

約数和(自身を除く): 5666833

約数列:

[1, 5, 17, 85, 293, 823, 1465, 4115, 4981, 13991, 24905, 69955, 241139, 1205695, 4099363, 20496815]

約数ペア:

[(1, 20496815), (5, 4099363), (17, 1205695), (85, 241139), (293, 69955), (823, 24905), (1465, 13991), (4115, 4981)]