20705904

素因数分解:

$2^4\times 3^2\times {\mathrm{143791}}^1$

素因数の和:143805

約数の個数: 30

約数和(自身を含む): 57948176

約数和(自身を除く): 37242272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 143791, 287582, 431373, 575164, 862746, 1150328, 1294119, 1725492, 2300656, 2588238, 3450984, 5176476, 6901968, 10352952, 20705904]

約数ペア:

[(1, 20705904), (2, 10352952), (3, 6901968), (4, 5176476), (6, 3450984), (8, 2588238), (9, 2300656), (12, 1725492), (16, 1294119), (18, 1150328), (24, 862746), (36, 575164), (48, 431373), (72, 287582), (144, 143791)]