18708788

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1801}}^1$

素因数の和:1872

約数の個数: 36

約数和(自身を含む): 38825892

約数和(自身を除く): 20117104

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 1801, 2597, 3602, 5194, 7204, 10388, 12607, 25214, 50428, 88249, 95453, 176498, 190906, 352996, 381812, 668171, 1336342, 2672684, 4677197, 9354394, 18708788]

約数ペア:

[(1, 18708788), (2, 9354394), (4, 4677197), (7, 2672684), (14, 1336342), (28, 668171), (49, 381812), (53, 352996), (98, 190906), (106, 176498), (196, 95453), (212, 88249), (371, 50428), (742, 25214), (1484, 12607), (1801, 10388), (2597, 7204), (3602, 5194)]