12778857

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:779

約数の個数: 48

約数和(自身を含む): 23748480

約数和(自身を除く): 10969623

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 743, 819, 1323, 1911, 2229, 2457, 5201, 5733, 6687, 9659, 15603, 17199, 20061, 28977, 36407, 46809, 67613, 86931, 109221, 140427, 202839, 260793, 327663, 473291, 608517, 982989, 1419873, 1825551, 4259619, 12778857]

約数ペア:

[(1, 12778857), (3, 4259619), (7, 1825551), (9, 1419873), (13, 982989), (21, 608517), (27, 473291), (39, 327663), (49, 260793), (63, 202839), (91, 140427), (117, 109221), (147, 86931), (189, 67613), (273, 46809), (351, 36407), (441, 28977), (637, 20061), (743, 17199), (819, 15603), (1323, 9659), (1911, 6687), (2229, 5733), (2457, 5201)]