199989081

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:443

約数の個数: 40

約数和(自身を含む): 305895744

約数和(自身を除く): 105906663

約数列:

[1, 3, 9, 27, 81, 83, 151, 197, 249, 453, 591, 747, 1359, 1773, 2241, 4077, 5319, 6723, 12231, 12533, 15957, 16351, 29747, 37599, 49053, 89241, 112797, 147159, 267723, 338391, 441477, 803169, 1015173, 1324431, 2409507, 2469001, 7407003, 22221009, 66663027, 199989081]

約数ペア:

[(1, 199989081), (3, 66663027), (9, 22221009), (27, 7407003), (81, 2469001), (83, 2409507), (151, 1324431), (197, 1015173), (249, 803169), (453, 441477), (591, 338391), (747, 267723), (1359, 147159), (1773, 112797), (2241, 89241), (4077, 49053), (5319, 37599), (6723, 29747), (12231, 16351), (12533, 15957)]