81189738

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{644363}}^1$

素因数の和:644378

約数の個数: 24

約数和(自身を含む): 201041568

約数和(自身を除く): 119851830

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 644363, 1288726, 1933089, 3866178, 4510541, 5799267, 9021082, 11598534, 13531623, 27063246, 40594869, 81189738]

約数ペア:

[(1, 81189738), (2, 40594869), (3, 27063246), (6, 13531623), (7, 11598534), (9, 9021082), (14, 5799267), (18, 4510541), (21, 3866178), (42, 1933089), (63, 1288726), (126, 644363)]