21751024

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79967}}^1$

素因数の和:79992

約数の個数: 20

約数和(自身を含む): 44622144

約数和(自身を除く): 22871120

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79967, 159934, 319868, 639736, 1279472, 1359439, 2718878, 5437756, 10875512, 21751024]

約数ペア:

[(1, 21751024), (2, 10875512), (4, 5437756), (8, 2718878), (16, 1359439), (17, 1279472), (34, 639736), (68, 319868), (136, 159934), (272, 79967)]