21149808

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{10247}}^1$

素因数の和:10301

約数の個数: 40

約数和(自身を含む): 55913088

約数和(自身を除く): 34763280

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 10247, 20494, 30741, 40988, 61482, 81976, 122964, 163952, 245928, 440621, 491856, 881242, 1321863, 1762484, 2643726, 3524968, 5287452, 7049936, 10574904, 21149808]

約数ペア:

[(1, 21149808), (2, 10574904), (3, 7049936), (4, 5287452), (6, 3524968), (8, 2643726), (12, 1762484), (16, 1321863), (24, 881242), (43, 491856), (48, 440621), (86, 245928), (129, 163952), (172, 122964), (258, 81976), (344, 61482), (516, 40988), (688, 30741), (1032, 20494), (2064, 10247)]