81389538

素因数分解:

$2^1\times 3^2\times {\mathrm{239}}^1\times {\mathrm{18919}}^1$

素因数の和:19166

約数の個数: 24

約数和(自身を含む): 177091200

約数和(自身を除く): 95701662

約数列:

[1, 2, 3, 6, 9, 18, 239, 478, 717, 1434, 2151, 4302, 18919, 37838, 56757, 113514, 170271, 340542, 4521641, 9043282, 13564923, 27129846, 40694769, 81389538]

約数ペア:

[(1, 81389538), (2, 40694769), (3, 27129846), (6, 13564923), (9, 9043282), (18, 4521641), (239, 340542), (478, 170271), (717, 113514), (1434, 56757), (2151, 37838), (4302, 18919)]