81165609

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{67}}^2$

素因数の和:195

約数の個数: 54

約数和(自身を含む): 141822954

約数和(自身を除く): 60657345

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 67, 123, 147, 201, 287, 369, 441, 469, 603, 861, 1407, 2009, 2583, 2747, 3283, 4221, 4489, 6027, 8241, 9849, 13467, 18081, 19229, 24723, 29547, 31423, 40401, 57687, 94269, 134603, 173061, 184049, 219961, 282807, 403809, 552147, 659883, 1211427, 1288343, 1656441, 1979649, 3865029, 9018401, 11595087, 27055203, 81165609]

約数ペア:

[(1, 81165609), (3, 27055203), (7, 11595087), (9, 9018401), (21, 3865029), (41, 1979649), (49, 1656441), (63, 1288343), (67, 1211427), (123, 659883), (147, 552147), (201, 403809), (287, 282807), (369, 219961), (441, 184049), (469, 173061), (603, 134603), (861, 94269), (1407, 57687), (2009, 40401), (2583, 31423), (2747, 29547), (3283, 24723), (4221, 19229), (4489, 18081), (6027, 13467), (8241, 9849)]