28788249

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3137}}^1$

素因数の和:3189

約数の個数: 32

約数和(自身を含む): 48199680

約数和(自身を除く): 19411431

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 3059, 3137, 9177, 9411, 21959, 59603, 65877, 72151, 178809, 216453, 417221, 505057, 1251663, 1370869, 1515171, 4112607, 9596083, 28788249]

約数ペア:

[(1, 28788249), (3, 9596083), (7, 4112607), (19, 1515171), (21, 1370869), (23, 1251663), (57, 505057), (69, 417221), (133, 216453), (161, 178809), (399, 72151), (437, 65877), (483, 59603), (1311, 21959), (3059, 9411), (3137, 9177)]