21707200

素因数分解:

$2^6\times 5^2\times {\mathrm{13567}}^1$

素因数の和:13589

約数の個数: 42

約数和(自身を含む): 53417216

約数和(自身を除く): 31710016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13567, 27134, 54268, 67835, 108536, 135670, 217072, 271340, 339175, 434144, 542680, 678350, 868288, 1085360, 1356700, 2170720, 2713400, 4341440, 5426800, 10853600, 21707200]

約数ペア:

[(1, 21707200), (2, 10853600), (4, 5426800), (5, 4341440), (8, 2713400), (10, 2170720), (16, 1356700), (20, 1085360), (25, 868288), (32, 678350), (40, 542680), (50, 434144), (64, 339175), (80, 271340), (100, 217072), (160, 135670), (200, 108536), (320, 67835), (400, 54268), (800, 27134), (1600, 13567)]