21797244

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1291}}^1$

素因数の和:1375

約数の個数: 72

約数和(自身を含む): 63959168

約数和(自身を除く): 42161924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 67, 84, 126, 134, 201, 252, 268, 402, 469, 603, 804, 938, 1206, 1291, 1407, 1876, 2412, 2582, 2814, 3873, 4221, 5164, 5628, 7746, 8442, 9037, 11619, 15492, 16884, 18074, 23238, 27111, 36148, 46476, 54222, 81333, 86497, 108444, 162666, 172994, 259491, 325332, 345988, 518982, 605479, 778473, 1037964, 1210958, 1556946, 1816437, 2421916, 3113892, 3632874, 5449311, 7265748, 10898622, 21797244]

約数ペア:

[(1, 21797244), (2, 10898622), (3, 7265748), (4, 5449311), (6, 3632874), (7, 3113892), (9, 2421916), (12, 1816437), (14, 1556946), (18, 1210958), (21, 1037964), (28, 778473), (36, 605479), (42, 518982), (63, 345988), (67, 325332), (84, 259491), (126, 172994), (134, 162666), (201, 108444), (252, 86497), (268, 81333), (402, 54222), (469, 46476), (603, 36148), (804, 27111), (938, 23238), (1206, 18074), (1291, 16884), (1407, 15492), (1876, 11619), (2412, 9037), (2582, 8442), (2814, 7746), (3873, 5628), (4221, 5164)]