20931515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{883}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 27495936

約数和(自身を除く): 6564421

約数列:

[1, 5, 11, 55, 431, 883, 2155, 4415, 4741, 9713, 23705, 48565, 380573, 1902865, 4186303, 20931515]

約数ペア:

[(1, 20931515), (5, 4186303), (11, 1902865), (55, 380573), (431, 48565), (883, 23705), (2155, 9713), (4415, 4741)]