21081298

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1933}}^1$

素因数の和:2002

約数の個数: 32

約数和(自身を含む): 38989440

約数和(自身を除く): 17908142

約数列:

[1, 2, 7, 14, 19, 38, 41, 82, 133, 266, 287, 574, 779, 1558, 1933, 3866, 5453, 10906, 13531, 27062, 36727, 73454, 79253, 158506, 257089, 514178, 554771, 1109542, 1505807, 3011614, 10540649, 21081298]

約数ペア:

[(1, 21081298), (2, 10540649), (7, 3011614), (14, 1505807), (19, 1109542), (38, 554771), (41, 514178), (82, 257089), (133, 158506), (266, 79253), (287, 73454), (574, 36727), (779, 27062), (1558, 13531), (1933, 10906), (3866, 5453)]