18716824

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 24483176

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 343, 359, 392, 532, 686, 718, 931, 1064, 1372, 1436, 1862, 2513, 2744, 2872, 3724, 5026, 6517, 6821, 7448, 10052, 13034, 13642, 17591, 20104, 26068, 27284, 35182, 47747, 52136, 54568, 70364, 95494, 123137, 140728, 190988, 246274, 334229, 381976, 492548, 668458, 985096, 1336916, 2339603, 2673832, 4679206, 9358412, 18716824]

約数ペア:

[(1, 18716824), (2, 9358412), (4, 4679206), (7, 2673832), (8, 2339603), (14, 1336916), (19, 985096), (28, 668458), (38, 492548), (49, 381976), (56, 334229), (76, 246274), (98, 190988), (133, 140728), (152, 123137), (196, 95494), (266, 70364), (343, 54568), (359, 52136), (392, 47747), (532, 35182), (686, 27284), (718, 26068), (931, 20104), (1064, 17591), (1372, 13642), (1436, 13034), (1862, 10052), (2513, 7448), (2744, 6821), (2872, 6517), (3724, 5026)]