22720789

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{773}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 31207680

約数和(自身を除く): 8486891

約数列:

[1, 7, 13, 17, 19, 91, 119, 133, 221, 247, 323, 773, 1547, 1729, 2261, 4199, 5411, 10049, 13141, 14687, 29393, 70343, 91987, 102809, 170833, 190931, 249679, 1195831, 1336517, 1747753, 3245827, 22720789]

約数ペア:

[(1, 22720789), (7, 3245827), (13, 1747753), (17, 1336517), (19, 1195831), (91, 249679), (119, 190931), (133, 170833), (221, 102809), (247, 91987), (323, 70343), (773, 29393), (1547, 14687), (1729, 13141), (2261, 10049), (4199, 5411)]