21688272

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7927}}^1$

素因数の和:7960

約数の個数: 60

約数和(自身を含む): 63899680

約数和(自身を除く): 42211408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7927, 15854, 23781, 31708, 47562, 63416, 71343, 95124, 126832, 142686, 150613, 190248, 285372, 301226, 380496, 451839, 570744, 602452, 903678, 1141488, 1204904, 1355517, 1807356, 2409808, 2711034, 3614712, 5422068, 7229424, 10844136, 21688272]

約数ペア:

[(1, 21688272), (2, 10844136), (3, 7229424), (4, 5422068), (6, 3614712), (8, 2711034), (9, 2409808), (12, 1807356), (16, 1355517), (18, 1204904), (19, 1141488), (24, 903678), (36, 602452), (38, 570744), (48, 451839), (57, 380496), (72, 301226), (76, 285372), (114, 190248), (144, 150613), (152, 142686), (171, 126832), (228, 95124), (304, 71343), (342, 63416), (456, 47562), (684, 31708), (912, 23781), (1368, 15854), (2736, 7927)]