20871123196

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67763387}}^1$

素因数の和:67763409

約数の個数: 24

約数和(自身を含む): 45536996736

約数和(自身を除く): 24665873540

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67763387, 135526774, 271053548, 474343709, 745397257, 948687418, 1490794514, 1897374836, 2981589028, 5217780799, 10435561598, 20871123196]

約数ペア:

[(1, 20871123196), (2, 10435561598), (4, 5217780799), (7, 2981589028), (11, 1897374836), (14, 1490794514), (22, 948687418), (28, 745397257), (44, 474343709), (77, 271053548), (154, 135526774), (308, 67763387)]