81521396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{4019}}^1$

素因数の和:4495

約数の個数: 24

約数和(自身を含む): 156008160

約数和(自身を除く): 74486764

約数列:

[1, 2, 4, 11, 22, 44, 461, 922, 1844, 4019, 5071, 8038, 10142, 16076, 20284, 44209, 88418, 176836, 1852759, 3705518, 7411036, 20380349, 40760698, 81521396]

約数ペア:

[(1, 81521396), (2, 40760698), (4, 20380349), (11, 7411036), (22, 3705518), (44, 1852759), (461, 176836), (922, 88418), (1844, 44209), (4019, 20284), (5071, 16076), (8038, 10142)]