21380458818

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{1951}}^1\times {\mathrm{79411}}^1$

素因数の和:81390

約数の個数: 32

約数和(自身を含む): 44643520512

約数和(自身を除く): 23263061694

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 1951, 3902, 5853, 11706, 44873, 79411, 89746, 134619, 158822, 238233, 269238, 476466, 1826453, 3652906, 5479359, 10958718, 154930861, 309861722, 464792583, 929585166, 3563409803, 7126819606, 10690229409, 21380458818]

約数ペア:

[(1, 21380458818), (2, 10690229409), (3, 7126819606), (6, 3563409803), (23, 929585166), (46, 464792583), (69, 309861722), (138, 154930861), (1951, 10958718), (3902, 5479359), (5853, 3652906), (11706, 1826453), (44873, 476466), (79411, 269238), (89746, 238233), (134619, 158822)]