20787634

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4597}}^1$

素因数の和:4642

約数の個数: 32

約数和(自身を含む): 39726720

約数和(自身を除く): 18939086

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4522, 4597, 9194, 32179, 64358, 78149, 87343, 156298, 174686, 547043, 611401, 1094086, 1222802, 1484831, 2969662, 10393817, 20787634]

約数ペア:

[(1, 20787634), (2, 10393817), (7, 2969662), (14, 1484831), (17, 1222802), (19, 1094086), (34, 611401), (38, 547043), (119, 174686), (133, 156298), (238, 87343), (266, 78149), (323, 64358), (646, 32179), (2261, 9194), (4522, 4597)]