21490672

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10099}}^1$

素因数の和:10133

約数の個数: 40

約数和(自身を含む): 50096000

約数和(自身を除く): 28605328

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 10099, 20198, 40396, 70693, 80792, 141386, 161584, 191881, 282772, 383762, 565544, 767524, 1131088, 1343167, 1535048, 2686334, 3070096, 5372668, 10745336, 21490672]

約数ペア:

[(1, 21490672), (2, 10745336), (4, 5372668), (7, 3070096), (8, 2686334), (14, 1535048), (16, 1343167), (19, 1131088), (28, 767524), (38, 565544), (56, 383762), (76, 282772), (112, 191881), (133, 161584), (152, 141386), (266, 80792), (304, 70693), (532, 40396), (1064, 20198), (2128, 10099)]