21167249493

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{347}}^1\times {\mathrm{1523}}^1$

素因数の和:1978

約数の個数: 48

約数和(自身を含む): 31057413120

約数和(自身を除く): 9890163627

約数列:

[1, 3, 13, 39, 79, 169, 237, 347, 507, 1027, 1041, 1523, 3081, 4511, 4569, 13351, 13533, 19799, 27413, 40053, 58643, 59397, 82239, 120317, 175929, 257387, 356369, 360951, 528481, 772161, 1069107, 1564121, 1585443, 4632797, 4692363, 6870253, 13898391, 20333573, 20610759, 41749999, 61000719, 89313289, 125249997, 267939867, 542749987, 1628249961, 7055749831, 21167249493]

約数ペア:

[(1, 21167249493), (3, 7055749831), (13, 1628249961), (39, 542749987), (79, 267939867), (169, 125249997), (237, 89313289), (347, 61000719), (507, 41749999), (1027, 20610759), (1041, 20333573), (1523, 13898391), (3081, 6870253), (4511, 4692363), (4569, 4632797), (13351, 1585443), (13533, 1564121), (19799, 1069107), (27413, 772161), (40053, 528481), (58643, 360951), (59397, 356369), (82239, 257387), (120317, 175929)]