19821258

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 44478720

約数和(自身を除く): 24657462

約数列:

[1, 2, 3, 6, 9, 18, 53, 79, 106, 158, 159, 237, 263, 318, 474, 477, 526, 711, 789, 954, 1422, 1578, 2367, 4187, 4734, 8374, 12561, 13939, 20777, 25122, 27878, 37683, 41554, 41817, 62331, 75366, 83634, 124662, 125451, 186993, 250902, 373986, 1101181, 2202362, 3303543, 6607086, 9910629, 19821258]

約数ペア:

[(1, 19821258), (2, 9910629), (3, 6607086), (6, 3303543), (9, 2202362), (18, 1101181), (53, 373986), (79, 250902), (106, 186993), (158, 125451), (159, 124662), (237, 83634), (263, 75366), (318, 62331), (474, 41817), (477, 41554), (526, 37683), (711, 27878), (789, 25122), (954, 20777), (1422, 13939), (1578, 12561), (2367, 8374), (4187, 4734)]