21561696

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{443}}^1$

素因数の和:485

約数の個数: 108

約数和(自身を含む): 66545388

約数和(自身を除く): 44983692

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 443, 468, 507, 624, 676, 886, 936, 1014, 1248, 1329, 1352, 1521, 1772, 1872, 2028, 2658, 2704, 3042, 3544, 3744, 3987, 4056, 5316, 5408, 5759, 6084, 7088, 7974, 8112, 10632, 11518, 12168, 14176, 15948, 16224, 17277, 21264, 23036, 24336, 31896, 34554, 42528, 46072, 48672, 51831, 63792, 69108, 74867, 92144, 103662, 127584, 138216, 149734, 184288, 207324, 224601, 276432, 299468, 414648, 449202, 552864, 598936, 673803, 829296, 898404, 1197872, 1347606, 1658592, 1796808, 2395744, 2695212, 3593616, 5390424, 7187232, 10780848, 21561696]

約数ペア:

[(1, 21561696), (2, 10780848), (3, 7187232), (4, 5390424), (6, 3593616), (8, 2695212), (9, 2395744), (12, 1796808), (13, 1658592), (16, 1347606), (18, 1197872), (24, 898404), (26, 829296), (32, 673803), (36, 598936), (39, 552864), (48, 449202), (52, 414648), (72, 299468), (78, 276432), (96, 224601), (104, 207324), (117, 184288), (144, 149734), (156, 138216), (169, 127584), (208, 103662), (234, 92144), (288, 74867), (312, 69108), (338, 63792), (416, 51831), (443, 48672), (468, 46072), (507, 42528), (624, 34554), (676, 31896), (886, 24336), (936, 23036), (1014, 21264), (1248, 17277), (1329, 16224), (1352, 15948), (1521, 14176), (1772, 12168), (1872, 11518), (2028, 10632), (2658, 8112), (2704, 7974), (3042, 7088), (3544, 6084), (3744, 5759), (3987, 5408), (4056, 5316)]