21801800

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1627}}^1$

素因数の和:1710

約数の個数: 48

約数和(自身を含む): 51477360

約数和(自身を除く): 29675560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 200, 268, 335, 536, 670, 1340, 1627, 1675, 2680, 3254, 3350, 6508, 6700, 8135, 13016, 13400, 16270, 32540, 40675, 65080, 81350, 109009, 162700, 218018, 325400, 436036, 545045, 872072, 1090090, 2180180, 2725225, 4360360, 5450450, 10900900, 21801800]

約数ペア:

[(1, 21801800), (2, 10900900), (4, 5450450), (5, 4360360), (8, 2725225), (10, 2180180), (20, 1090090), (25, 872072), (40, 545045), (50, 436036), (67, 325400), (100, 218018), (134, 162700), (200, 109009), (268, 81350), (335, 65080), (536, 40675), (670, 32540), (1340, 16270), (1627, 13400), (1675, 13016), (2680, 8135), (3254, 6700), (3350, 6508)]