20404962

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 46414368

約数和(自身を除く): 26009406

約数列:

[1, 2, 3, 6, 9, 18, 41, 43, 82, 86, 123, 129, 246, 258, 369, 387, 643, 738, 774, 1286, 1763, 1929, 3526, 3858, 5289, 5787, 10578, 11574, 15867, 26363, 27649, 31734, 52726, 55298, 79089, 82947, 158178, 165894, 237267, 248841, 474534, 497682, 1133609, 2267218, 3400827, 6801654, 10202481, 20404962]

約数ペア:

[(1, 20404962), (2, 10202481), (3, 6801654), (6, 3400827), (9, 2267218), (18, 1133609), (41, 497682), (43, 474534), (82, 248841), (86, 237267), (123, 165894), (129, 158178), (246, 82947), (258, 79089), (369, 55298), (387, 52726), (643, 31734), (738, 27649), (774, 26363), (1286, 15867), (1763, 11574), (1929, 10578), (3526, 5787), (3858, 5289)]