81396984

素因数分解:

$2^3\times 3^1\times {\mathrm{163}}^1\times {\mathrm{20807}}^1$

素因数の和:20979

約数の個数: 32

約数和(自身を含む): 204750720

約数和(自身を除く): 123353736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 163, 326, 489, 652, 978, 1304, 1956, 3912, 20807, 41614, 62421, 83228, 124842, 166456, 249684, 499368, 3391541, 6783082, 10174623, 13566164, 20349246, 27132328, 40698492, 81396984]

約数ペア:

[(1, 81396984), (2, 40698492), (3, 27132328), (4, 20349246), (6, 13566164), (8, 10174623), (12, 6783082), (24, 3391541), (163, 499368), (326, 249684), (489, 166456), (652, 124842), (978, 83228), (1304, 62421), (1956, 41614), (3912, 20807)]