21750776

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1193}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 42554160

約数和(自身を除く): 20803384

約数列:

[1, 2, 4, 8, 43, 53, 86, 106, 172, 212, 344, 424, 1193, 2279, 2386, 4558, 4772, 9116, 9544, 18232, 51299, 63229, 102598, 126458, 205196, 252916, 410392, 505832, 2718847, 5437694, 10875388, 21750776]

約数ペア:

[(1, 21750776), (2, 10875388), (4, 5437694), (8, 2718847), (43, 505832), (53, 410392), (86, 252916), (106, 205196), (172, 126458), (212, 102598), (344, 63229), (424, 51299), (1193, 18232), (2279, 9544), (2386, 9116), (4558, 4772)]