20687922

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 47567520

約数和(自身を除く): 26879598

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 241, 251, 342, 482, 502, 723, 753, 1446, 1506, 2169, 2259, 4338, 4518, 4579, 4769, 9158, 9538, 13737, 14307, 27474, 28614, 41211, 42921, 60491, 82422, 85842, 120982, 181473, 362946, 544419, 1088838, 1149329, 2298658, 3447987, 6895974, 10343961, 20687922]

約数ペア:

[(1, 20687922), (2, 10343961), (3, 6895974), (6, 3447987), (9, 2298658), (18, 1149329), (19, 1088838), (38, 544419), (57, 362946), (114, 181473), (171, 120982), (241, 85842), (251, 82422), (342, 60491), (482, 42921), (502, 41211), (723, 28614), (753, 27474), (1446, 14307), (1506, 13737), (2169, 9538), (2259, 9158), (4338, 4769), (4518, 4579)]