81261411

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20693}}^1$

素因数の和:20731

約数の個数: 32

約数和(自身を含む): 143036928

約数和(自身を除く): 61775517

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 20693, 62079, 144851, 227623, 351781, 434553, 682869, 1055343, 1593361, 2462467, 3869591, 4780083, 7387401, 11608773, 27087137, 81261411]

約数ペア:

[(1, 81261411), (3, 27087137), (7, 11608773), (11, 7387401), (17, 4780083), (21, 3869591), (33, 2462467), (51, 1593361), (77, 1055343), (119, 682869), (187, 434553), (231, 351781), (357, 227623), (561, 144851), (1309, 62079), (3927, 20693)]