21559088

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28669}}^1$

素因数の和:28724

約数の個数: 20

約数和(自身を含む): 42660960

約数和(自身を除く): 21101872

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28669, 57338, 114676, 229352, 458704, 1347443, 2694886, 5389772, 10779544, 21559088]

約数ペア:

[(1, 21559088), (2, 10779544), (4, 5389772), (8, 2694886), (16, 1347443), (47, 458704), (94, 229352), (188, 114676), (376, 57338), (752, 28669)]