16626771

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 28312336

約数和(自身を除く): 11685565

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 157, 287, 369, 471, 861, 1099, 1413, 1681, 2583, 3297, 5043, 6437, 9891, 11767, 15129, 19311, 35301, 45059, 57933, 105903, 135177, 263917, 405531, 791751, 1847419, 2375253, 5542257, 16626771]

約数ペア:

[(1, 16626771), (3, 5542257), (7, 2375253), (9, 1847419), (21, 791751), (41, 405531), (63, 263917), (123, 135177), (157, 105903), (287, 57933), (369, 45059), (471, 35301), (861, 19311), (1099, 15129), (1413, 11767), (1681, 9891), (2583, 6437), (3297, 5043)]