18651438

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{163}}^2$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 44911440

約数和(自身を除く): 26260002

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 163, 234, 326, 351, 489, 702, 978, 1467, 2119, 2934, 4238, 4401, 6357, 8802, 12714, 19071, 26569, 38142, 53138, 57213, 79707, 114426, 159414, 239121, 345397, 478242, 690794, 717363, 1036191, 1434726, 2072382, 3108573, 6217146, 9325719, 18651438]

約数ペア:

[(1, 18651438), (2, 9325719), (3, 6217146), (6, 3108573), (9, 2072382), (13, 1434726), (18, 1036191), (26, 717363), (27, 690794), (39, 478242), (54, 345397), (78, 239121), (117, 159414), (163, 114426), (234, 79707), (326, 57213), (351, 53138), (489, 38142), (702, 26569), (978, 19071), (1467, 12714), (2119, 8802), (2934, 6357), (4238, 4401)]