28626521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1151}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 11186599

約数列:

[1, 7, 11, 17, 19, 77, 119, 133, 187, 209, 323, 1151, 1309, 1463, 2261, 3553, 8057, 12661, 19567, 21869, 24871, 88627, 136969, 153083, 215237, 240559, 371773, 1506659, 1683913, 2602411, 4089503, 28626521]

約数ペア:

[(1, 28626521), (7, 4089503), (11, 2602411), (17, 1683913), (19, 1506659), (77, 371773), (119, 240559), (133, 215237), (187, 153083), (209, 136969), (323, 88627), (1151, 24871), (1309, 21869), (1463, 19567), (2261, 12661), (3553, 8057)]