21805084

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2411}}^1$

素因数の和:2458

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 26820836

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 323, 476, 532, 646, 1292, 2261, 2411, 4522, 4822, 9044, 9644, 16877, 33754, 40987, 45809, 67508, 81974, 91618, 163948, 183236, 286909, 320663, 573818, 641326, 778753, 1147636, 1282652, 1557506, 3115012, 5451271, 10902542, 21805084]

約数ペア:

[(1, 21805084), (2, 10902542), (4, 5451271), (7, 3115012), (14, 1557506), (17, 1282652), (19, 1147636), (28, 778753), (34, 641326), (38, 573818), (68, 320663), (76, 286909), (119, 183236), (133, 163948), (238, 91618), (266, 81974), (323, 67508), (476, 45809), (532, 40987), (646, 33754), (1292, 16877), (2261, 9644), (2411, 9044), (4522, 4822)]