21988984

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{38713}}^1$

素因数の和:38790

約数の個数: 16

約数和(自身を含む): 41811120

約数和(自身を除く): 19822136

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 38713, 77426, 154852, 309704, 2748623, 5497246, 10994492, 21988984]

約数ペア:

[(1, 21988984), (2, 10994492), (4, 5497246), (8, 2748623), (71, 309704), (142, 154852), (284, 77426), (568, 38713)]