18911988

素因数分解:

$2^2\times 3^3\times {\mathrm{41}}^1\times {\mathrm{4271}}^1$

素因数の和:4325

約数の個数: 48

約数和(自身を含む): 50238720

約数和(自身を除く): 31326732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 41, 54, 82, 108, 123, 164, 246, 369, 492, 738, 1107, 1476, 2214, 4271, 4428, 8542, 12813, 17084, 25626, 38439, 51252, 76878, 115317, 153756, 175111, 230634, 350222, 461268, 525333, 700444, 1050666, 1575999, 2101332, 3151998, 4727997, 6303996, 9455994, 18911988]

約数ペア:

[(1, 18911988), (2, 9455994), (3, 6303996), (4, 4727997), (6, 3151998), (9, 2101332), (12, 1575999), (18, 1050666), (27, 700444), (36, 525333), (41, 461268), (54, 350222), (82, 230634), (108, 175111), (123, 153756), (164, 115317), (246, 76878), (369, 51252), (492, 38439), (738, 25626), (1107, 17084), (1476, 12813), (2214, 8542), (4271, 4428)]