81793257

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5653}}^1$

素因数の和:5729

約数の個数: 32

約数和(自身を含む): 136781568

約数和(自身を除く): 54988311

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 2067, 4823, 5653, 14469, 16959, 39571, 73489, 118713, 220467, 299609, 514423, 898827, 1543269, 2097263, 3894917, 6291789, 11684751, 27264419, 81793257]

約数ペア:

[(1, 81793257), (3, 27264419), (7, 11684751), (13, 6291789), (21, 3894917), (39, 2097263), (53, 1543269), (91, 898827), (159, 514423), (273, 299609), (371, 220467), (689, 118713), (1113, 73489), (2067, 39571), (4823, 16959), (5653, 14469)]