21878008

素因数分解:

$2^3\times {\mathrm{821}}^1\times {\mathrm{3331}}^1$

素因数の和:4158

約数の個数: 16

約数和(自身を含む): 41083560

約数和(自身を除く): 19205552

約数列:

[1, 2, 4, 8, 821, 1642, 3284, 3331, 6568, 6662, 13324, 26648, 2734751, 5469502, 10939004, 21878008]

約数ペア:

[(1, 21878008), (2, 10939004), (4, 5469502), (8, 2734751), (821, 26648), (1642, 13324), (3284, 6662), (3331, 6568)]