20290214

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 39521520

約数和(自身を除く): 19231306

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 49, 98, 119, 133, 238, 266, 323, 641, 646, 833, 931, 1282, 1666, 1862, 2261, 4487, 4522, 8974, 10897, 12179, 15827, 21794, 24358, 31409, 31654, 62818, 76279, 85253, 152558, 170506, 207043, 414086, 533953, 596771, 1067906, 1193542, 1449301, 2898602, 10145107, 20290214]

約数ペア:

[(1, 20290214), (2, 10145107), (7, 2898602), (14, 1449301), (17, 1193542), (19, 1067906), (34, 596771), (38, 533953), (49, 414086), (98, 207043), (119, 170506), (133, 152558), (238, 85253), (266, 76279), (323, 62818), (641, 31654), (646, 31409), (833, 24358), (931, 21794), (1282, 15827), (1666, 12179), (1862, 10897), (2261, 8974), (4487, 4522)]