21497588

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2377}}^1$

素因数の和:2424

約数の個数: 48

約数和(自身を含む): 47940480

約数和(自身を除く): 26442892

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, 2377, 4522, 4754, 9044, 9508, 16639, 33278, 40409, 45163, 66556, 80818, 90326, 161636, 180652, 282863, 316141, 565726, 632282, 767771, 1131452, 1264564, 1535542, 3071084, 5374397, 10748794, 21497588]

約数ペア:

[(1, 21497588), (2, 10748794), (4, 5374397), (7, 3071084), (14, 1535542), (17, 1264564), (19, 1131452), (28, 767771), (34, 632282), (38, 565726), (68, 316141), (76, 282863), (119, 180652), (133, 161636), (238, 90326), (266, 80818), (323, 66556), (476, 45163), (532, 40409), (646, 33278), (1292, 16639), (2261, 9508), (2377, 9044), (4522, 4754)]