18199856

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:549

約数の個数: 40

約数和(自身を含む): 36810144

約数和(自身を除く): 18610288

約数列:

[1, 2, 4, 8, 16, 37, 71, 74, 142, 148, 284, 296, 433, 568, 592, 866, 1136, 1732, 2627, 3464, 5254, 6928, 10508, 16021, 21016, 30743, 32042, 42032, 61486, 64084, 122972, 128168, 245944, 256336, 491888, 1137491, 2274982, 4549964, 9099928, 18199856]

約数ペア:

[(1, 18199856), (2, 9099928), (4, 4549964), (8, 2274982), (16, 1137491), (37, 491888), (71, 256336), (74, 245944), (142, 128168), (148, 122972), (284, 64084), (296, 61486), (433, 42032), (568, 32042), (592, 30743), (866, 21016), (1136, 16021), (1732, 10508), (2627, 6928), (3464, 5254)]