28505719

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 6952841

約数列:

[1, 11, 17, 19, 71, 113, 187, 209, 323, 781, 1207, 1243, 1349, 1921, 2147, 3553, 8023, 13277, 14839, 21131, 22933, 23617, 36499, 88253, 136391, 152437, 252263, 401489, 1500301, 1676807, 2591429, 28505719]

約数ペア:

[(1, 28505719), (11, 2591429), (17, 1676807), (19, 1500301), (71, 401489), (113, 252263), (187, 152437), (209, 136391), (323, 88253), (781, 36499), (1207, 23617), (1243, 22933), (1349, 21131), (1921, 14839), (2147, 13277), (3553, 8023)]