21372280

素因数分解:

$2^3\times 5^1\times {\mathrm{534307}}^1$

素因数の和:534318

約数の個数: 16

約数和(自身を含む): 48087720

約数和(自身を除く): 26715440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 534307, 1068614, 2137228, 2671535, 4274456, 5343070, 10686140, 21372280]

約数ペア:

[(1, 21372280), (2, 10686140), (4, 5343070), (5, 4274456), (8, 2671535), (10, 2137228), (20, 1068614), (40, 534307)]