20997504

素因数分解:

$2^7\times 3^2\times {\mathrm{11}}^1\times {\mathrm{1657}}^1$

素因数の和:1688

約数の個数: 96

約数和(自身を含む): 65955240

約数和(自身を除く): 44957736

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 264, 288, 352, 384, 396, 528, 576, 704, 792, 1056, 1152, 1408, 1584, 1657, 2112, 3168, 3314, 4224, 4971, 6336, 6628, 9942, 12672, 13256, 14913, 18227, 19884, 26512, 29826, 36454, 39768, 53024, 54681, 59652, 72908, 79536, 106048, 109362, 119304, 145816, 159072, 164043, 212096, 218724, 238608, 291632, 318144, 328086, 437448, 477216, 583264, 636288, 656172, 874896, 954432, 1166528, 1312344, 1749792, 1908864, 2333056, 2624688, 3499584, 5249376, 6999168, 10498752, 20997504]

約数ペア:

[(1, 20997504), (2, 10498752), (3, 6999168), (4, 5249376), (6, 3499584), (8, 2624688), (9, 2333056), (11, 1908864), (12, 1749792), (16, 1312344), (18, 1166528), (22, 954432), (24, 874896), (32, 656172), (33, 636288), (36, 583264), (44, 477216), (48, 437448), (64, 328086), (66, 318144), (72, 291632), (88, 238608), (96, 218724), (99, 212096), (128, 164043), (132, 159072), (144, 145816), (176, 119304), (192, 109362), (198, 106048), (264, 79536), (288, 72908), (352, 59652), (384, 54681), (396, 53024), (528, 39768), (576, 36454), (704, 29826), (792, 26512), (1056, 19884), (1152, 18227), (1408, 14913), (1584, 13256), (1657, 12672), (2112, 9942), (3168, 6628), (3314, 6336), (4224, 4971)]