20014988

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^2$

素因数の和:354

約数の個数: 36

約数和(自身を含む): 41675760

約数和(自身を除く): 21660772

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 157, 203, 314, 406, 628, 812, 1099, 2198, 4396, 4553, 9106, 18212, 24649, 31871, 49298, 63742, 98596, 127484, 172543, 345086, 690172, 714821, 1429642, 2859284, 5003747, 10007494, 20014988]

約数ペア:

[(1, 20014988), (2, 10007494), (4, 5003747), (7, 2859284), (14, 1429642), (28, 714821), (29, 690172), (58, 345086), (116, 172543), (157, 127484), (203, 98596), (314, 63742), (406, 49298), (628, 31871), (812, 24649), (1099, 18212), (2198, 9106), (4396, 4553)]