21724280

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1433}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 49042800

約数和(自身を除く): 27318520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1433, 1516, 1895, 2866, 3032, 3790, 5732, 7165, 7580, 11464, 14330, 15160, 28660, 57320, 543107, 1086214, 2172428, 2715535, 4344856, 5431070, 10862140, 21724280]

約数ペア:

[(1, 21724280), (2, 10862140), (4, 5431070), (5, 4344856), (8, 2715535), (10, 2172428), (20, 1086214), (40, 543107), (379, 57320), (758, 28660), (1433, 15160), (1516, 14330), (1895, 11464), (2866, 7580), (3032, 7165), (3790, 5732)]