21453400

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1601}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 50655240

約数和(自身を除く): 29201840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 200, 268, 335, 536, 670, 1340, 1601, 1675, 2680, 3202, 3350, 6404, 6700, 8005, 12808, 13400, 16010, 32020, 40025, 64040, 80050, 107267, 160100, 214534, 320200, 429068, 536335, 858136, 1072670, 2145340, 2681675, 4290680, 5363350, 10726700, 21453400]

約数ペア:

[(1, 21453400), (2, 10726700), (4, 5363350), (5, 4290680), (8, 2681675), (10, 2145340), (20, 1072670), (25, 858136), (40, 536335), (50, 429068), (67, 320200), (100, 214534), (134, 160100), (200, 107267), (268, 80050), (335, 64040), (536, 40025), (670, 32020), (1340, 16010), (1601, 13400), (1675, 12808), (2680, 8005), (3202, 6700), (3350, 6404)]