21494855816

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1091}}^1\times {\mathrm{8581}}^1$

素因数の和:9726

約数の個数: 64

約数和(自身を含む): 47232581760

約数和(自身を除く): 25737725944

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1091, 1148, 2182, 2296, 4364, 7637, 8581, 8728, 15274, 17162, 30548, 34324, 44731, 60067, 61096, 68648, 89462, 120134, 178924, 240268, 313117, 351821, 357848, 480536, 626234, 703642, 1252468, 1407284, 2462747, 2504936, 2814568, 4925494, 9361871, 9850988, 18723742, 19701976, 37447484, 65533097, 74894968, 131066194, 262132388, 383836711, 524264776, 767673422, 1535346844, 2686856977, 3070693688, 5373713954, 10747427908, 21494855816]

約数ペア:

[(1, 21494855816), (2, 10747427908), (4, 5373713954), (7, 3070693688), (8, 2686856977), (14, 1535346844), (28, 767673422), (41, 524264776), (56, 383836711), (82, 262132388), (164, 131066194), (287, 74894968), (328, 65533097), (574, 37447484), (1091, 19701976), (1148, 18723742), (2182, 9850988), (2296, 9361871), (4364, 4925494), (7637, 2814568), (8581, 2504936), (8728, 2462747), (15274, 1407284), (17162, 1252468), (30548, 703642), (34324, 626234), (44731, 480536), (60067, 357848), (61096, 351821), (68648, 313117), (89462, 240268), (120134, 178924)]