21363976

素因数分解:

$2^3\times {\mathrm{167}}^1\times {\mathrm{15991}}^1$

素因数の和:16164

約数の個数: 16

約数和(自身を含む): 40299840

約数和(自身を除く): 18935864

約数列:

[1, 2, 4, 8, 167, 334, 668, 1336, 15991, 31982, 63964, 127928, 2670497, 5340994, 10681988, 21363976]

約数ペア:

[(1, 21363976), (2, 10681988), (4, 5340994), (8, 2670497), (167, 127928), (334, 63964), (668, 31982), (1336, 15991)]