20689812

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4019}}^1$

素因数の和:4053

約数の個数: 72

約数和(自身を含む): 61457760

約数和(自身を除く): 40767948

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4019, 5148, 8038, 12057, 16076, 24114, 36171, 44209, 48228, 52247, 72342, 88418, 104494, 132627, 144684, 156741, 176836, 208988, 265254, 313482, 397881, 470223, 530508, 574717, 626964, 795762, 940446, 1149434, 1591524, 1724151, 1880892, 2298868, 3448302, 5172453, 6896604, 10344906, 20689812]

約数ペア:

[(1, 20689812), (2, 10344906), (3, 6896604), (4, 5172453), (6, 3448302), (9, 2298868), (11, 1880892), (12, 1724151), (13, 1591524), (18, 1149434), (22, 940446), (26, 795762), (33, 626964), (36, 574717), (39, 530508), (44, 470223), (52, 397881), (66, 313482), (78, 265254), (99, 208988), (117, 176836), (132, 156741), (143, 144684), (156, 132627), (198, 104494), (234, 88418), (286, 72342), (396, 52247), (429, 48228), (468, 44209), (572, 36171), (858, 24114), (1287, 16076), (1716, 12057), (2574, 8038), (4019, 5148)]