21942536

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 29897464

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 179, 199, 308, 358, 398, 616, 716, 796, 1253, 1393, 1432, 1592, 1969, 2189, 2506, 2786, 3938, 4378, 5012, 5572, 7876, 8756, 10024, 11144, 13783, 15323, 15752, 17512, 27566, 30646, 35621, 55132, 61292, 71242, 110264, 122584, 142484, 249347, 284968, 391831, 498694, 783662, 997388, 1567324, 1994776, 2742817, 3134648, 5485634, 10971268, 21942536]

約数ペア:

[(1, 21942536), (2, 10971268), (4, 5485634), (7, 3134648), (8, 2742817), (11, 1994776), (14, 1567324), (22, 997388), (28, 783662), (44, 498694), (56, 391831), (77, 284968), (88, 249347), (154, 142484), (179, 122584), (199, 110264), (308, 71242), (358, 61292), (398, 55132), (616, 35621), (716, 30646), (796, 27566), (1253, 17512), (1393, 15752), (1432, 15323), (1592, 13783), (1969, 11144), (2189, 10024), (2506, 8756), (2786, 7876), (3938, 5572), (4378, 5012)]