39978009

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{9431}}^1$

素因数の和:9597

約数の個数: 16

約数和(自身を含む): 59610240

約数和(自身を除く): 19632231

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 9431, 28293, 84879, 254637, 1480667, 4442001, 13326003, 39978009]

約数ペア:

[(1, 39978009), (3, 13326003), (9, 4442001), (27, 1480667), (157, 254637), (471, 84879), (1413, 28293), (4239, 9431)]