21630005

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1481}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 27316224

約数和(自身を除く): 5686219

約数列:

[1, 5, 23, 115, 127, 635, 1481, 2921, 7405, 14605, 34063, 170315, 188087, 940435, 4326001, 21630005]

約数ペア:

[(1, 21630005), (5, 4326001), (23, 940435), (115, 188087), (127, 170315), (635, 34063), (1481, 14605), (2921, 7405)]