20418984

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^1\times {\mathrm{6917}}^1$

素因数の和:6970

約数の個数: 48

約数和(自身を含む): 56658420

約数和(自身を除く): 36239436

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 72, 82, 123, 164, 246, 328, 369, 492, 738, 984, 1476, 2952, 6917, 13834, 20751, 27668, 41502, 55336, 62253, 83004, 124506, 166008, 249012, 283597, 498024, 567194, 850791, 1134388, 1701582, 2268776, 2552373, 3403164, 5104746, 6806328, 10209492, 20418984]

約数ペア:

[(1, 20418984), (2, 10209492), (3, 6806328), (4, 5104746), (6, 3403164), (8, 2552373), (9, 2268776), (12, 1701582), (18, 1134388), (24, 850791), (36, 567194), (41, 498024), (72, 283597), (82, 249012), (123, 166008), (164, 124506), (246, 83004), (328, 62253), (369, 55336), (492, 41502), (738, 27668), (984, 20751), (1476, 13834), (2952, 6917)]