21237328

素因数分解:

$2^4\times 7^1\times {\mathrm{189619}}^1$

素因数の和:189634

約数の個数: 20

約数和(自身を含む): 47025760

約数和(自身を除く): 25788432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189619, 379238, 758476, 1327333, 1516952, 2654666, 3033904, 5309332, 10618664, 21237328]

約数ペア:

[(1, 21237328), (2, 10618664), (4, 5309332), (7, 3033904), (8, 2654666), (14, 1516952), (16, 1327333), (28, 758476), (56, 379238), (112, 189619)]