21087864

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{4649}}^1$

素因数の和:4674

約数の個数: 80

約数和(自身を含む): 67518000

約数和(自身を除く): 46430136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 252, 324, 378, 504, 567, 648, 756, 1134, 1512, 2268, 4536, 4649, 9298, 13947, 18596, 27894, 32543, 37192, 41841, 55788, 65086, 83682, 97629, 111576, 125523, 130172, 167364, 195258, 251046, 260344, 292887, 334728, 376569, 390516, 502092, 585774, 753138, 781032, 878661, 1004184, 1171548, 1506276, 1757322, 2343096, 2635983, 3012552, 3514644, 5271966, 7029288, 10543932, 21087864]

約数ペア:

[(1, 21087864), (2, 10543932), (3, 7029288), (4, 5271966), (6, 3514644), (7, 3012552), (8, 2635983), (9, 2343096), (12, 1757322), (14, 1506276), (18, 1171548), (21, 1004184), (24, 878661), (27, 781032), (28, 753138), (36, 585774), (42, 502092), (54, 390516), (56, 376569), (63, 334728), (72, 292887), (81, 260344), (84, 251046), (108, 195258), (126, 167364), (162, 130172), (168, 125523), (189, 111576), (216, 97629), (252, 83682), (324, 65086), (378, 55788), (504, 41841), (567, 37192), (648, 32543), (756, 27894), (1134, 18596), (1512, 13947), (2268, 9298), (4536, 4649)]