81958086

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2226

約数の個数: 72

約数和(自身を含む): 211469544

約数和(自身を除く): 129511458

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 49, 63, 86, 98, 126, 129, 147, 258, 294, 301, 387, 441, 602, 774, 882, 903, 1806, 2107, 2161, 2709, 4214, 4322, 5418, 6321, 6483, 12642, 12966, 15127, 18963, 19449, 30254, 37926, 38898, 45381, 90762, 92923, 105889, 136143, 185846, 211778, 272286, 278769, 317667, 557538, 635334, 650461, 836307, 953001, 1300922, 1672614, 1906002, 1951383, 3902766, 4553227, 5854149, 9106454, 11708298, 13659681, 27319362, 40979043, 81958086]

約数ペア:

[(1, 81958086), (2, 40979043), (3, 27319362), (6, 13659681), (7, 11708298), (9, 9106454), (14, 5854149), (18, 4553227), (21, 3902766), (42, 1951383), (43, 1906002), (49, 1672614), (63, 1300922), (86, 953001), (98, 836307), (126, 650461), (129, 635334), (147, 557538), (258, 317667), (294, 278769), (301, 272286), (387, 211778), (441, 185846), (602, 136143), (774, 105889), (882, 92923), (903, 90762), (1806, 45381), (2107, 38898), (2161, 37926), (2709, 30254), (4214, 19449), (4322, 18963), (5418, 15127), (6321, 12966), (6483, 12642)]