21575984

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8273}}^1$

素因数の和:8444

約数の個数: 20

約数和(自身を含む): 42065016

約数和(自身を除く): 20489032

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8273, 16546, 33092, 66184, 132368, 1348499, 2696998, 5393996, 10787992, 21575984]

約数ペア:

[(1, 21575984), (2, 10787992), (4, 5393996), (8, 2696998), (16, 1348499), (163, 132368), (326, 66184), (652, 33092), (1304, 16546), (2608, 8273)]