81717867

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3187}}^1$

素因数の和:3248

約数の個数: 48

約数和(自身を含む): 151187712

約数和(自身を除く): 69469845

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 111, 231, 259, 333, 407, 693, 777, 1221, 2331, 2849, 3187, 3663, 8547, 9561, 22309, 25641, 28683, 35057, 66927, 105171, 117919, 200781, 245399, 315513, 353757, 736197, 825433, 1061271, 1297109, 2208591, 2476299, 3891327, 7428897, 9079763, 11673981, 27239289, 81717867]

約数ペア:

[(1, 81717867), (3, 27239289), (7, 11673981), (9, 9079763), (11, 7428897), (21, 3891327), (33, 2476299), (37, 2208591), (63, 1297109), (77, 1061271), (99, 825433), (111, 736197), (231, 353757), (259, 315513), (333, 245399), (407, 200781), (693, 117919), (777, 105171), (1221, 66927), (2331, 35057), (2849, 28683), (3187, 25641), (3663, 22309), (8547, 9561)]