21140644

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 22727516

約数列:

[1, 2, 4, 7, 14, 28, 59, 67, 118, 134, 191, 236, 268, 382, 413, 469, 764, 826, 938, 1337, 1652, 1876, 2674, 3953, 5348, 7906, 11269, 12797, 15812, 22538, 25594, 27671, 45076, 51188, 55342, 78883, 89579, 110684, 157766, 179158, 315532, 358316, 755023, 1510046, 3020092, 5285161, 10570322, 21140644]

約数ペア:

[(1, 21140644), (2, 10570322), (4, 5285161), (7, 3020092), (14, 1510046), (28, 755023), (59, 358316), (67, 315532), (118, 179158), (134, 157766), (191, 110684), (236, 89579), (268, 78883), (382, 55342), (413, 51188), (469, 45076), (764, 27671), (826, 25594), (938, 22538), (1337, 15812), (1652, 12797), (1876, 11269), (2674, 7906), (3953, 5348)]