201521691

素因数分解:

$3^2\times 7^1\times {\mathrm{1747}}^1\times {\mathrm{1831}}^1$

素因数の和:3591

約数の個数: 24

約数和(自身を含む): 333042944

約数和(自身を除く): 131521253

約数列:

[1, 3, 7, 9, 21, 63, 1747, 1831, 5241, 5493, 12229, 12817, 15723, 16479, 36687, 38451, 110061, 115353, 3198757, 9596271, 22391299, 28788813, 67173897, 201521691]

約数ペア:

[(1, 201521691), (3, 67173897), (7, 28788813), (9, 22391299), (21, 9596271), (63, 3198757), (1747, 115353), (1831, 110061), (5241, 38451), (5493, 36687), (12229, 16479), (12817, 15723)]