21471056

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{2087}}^1$

素因数の和:2738

約数の個数: 20

約数和(自身を含む): 41684832

約数和(自身を除く): 20213776

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2087, 2572, 4174, 5144, 8348, 10288, 16696, 33392, 1341941, 2683882, 5367764, 10735528, 21471056]

約数ペア:

[(1, 21471056), (2, 10735528), (4, 5367764), (8, 2683882), (16, 1341941), (643, 33392), (1286, 16696), (2087, 10288), (2572, 8348), (4174, 5144)]