638744292

素因数分解:

$2^2\times 3^4\times {\mathrm{1971433}}^1$

素因数の和:1971449

約数の個数: 30

約数和(自身を含む): 1669804598

約数和(自身を除く): 1031060306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 1971433, 3942866, 5914299, 7885732, 11828598, 17742897, 23657196, 35485794, 53228691, 70971588, 106457382, 159686073, 212914764, 319372146, 638744292]

約数ペア:

[(1, 638744292), (2, 319372146), (3, 212914764), (4, 159686073), (6, 106457382), (9, 70971588), (12, 53228691), (18, 35485794), (27, 23657196), (36, 17742897), (54, 11828598), (81, 7885732), (108, 5914299), (162, 3942866), (324, 1971433)]