17991897

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1097}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 30357504

約数和(自身を除く): 12365607

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1097, 1491, 2343, 3291, 5467, 7679, 12067, 16401, 23037, 36201, 77887, 84469, 233661, 253407, 545209, 856757, 1635627, 2570271, 5997299, 17991897]

約数ペア:

[(1, 17991897), (3, 5997299), (7, 2570271), (11, 1635627), (21, 856757), (33, 545209), (71, 253407), (77, 233661), (213, 84469), (231, 77887), (497, 36201), (781, 23037), (1097, 16401), (1491, 12067), (2343, 7679), (3291, 5467)]