21406944

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1009}}^1$

素因数の和:1052

約数の個数: 96

約数和(自身を含む): 64139040

約数和(自身を除く): 42732096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 68, 78, 96, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 416, 442, 544, 624, 663, 816, 884, 1009, 1248, 1326, 1632, 1768, 2018, 2652, 3027, 3536, 4036, 5304, 6054, 7072, 8072, 10608, 12108, 13117, 16144, 17153, 21216, 24216, 26234, 32288, 34306, 39351, 48432, 51459, 52468, 68612, 78702, 96864, 102918, 104936, 137224, 157404, 205836, 209872, 222989, 274448, 314808, 411672, 419744, 445978, 548896, 629616, 668967, 823344, 891956, 1259232, 1337934, 1646688, 1783912, 2675868, 3567824, 5351736, 7135648, 10703472, 21406944]

約数ペア:

[(1, 21406944), (2, 10703472), (3, 7135648), (4, 5351736), (6, 3567824), (8, 2675868), (12, 1783912), (13, 1646688), (16, 1337934), (17, 1259232), (24, 891956), (26, 823344), (32, 668967), (34, 629616), (39, 548896), (48, 445978), (51, 419744), (52, 411672), (68, 314808), (78, 274448), (96, 222989), (102, 209872), (104, 205836), (136, 157404), (156, 137224), (204, 104936), (208, 102918), (221, 96864), (272, 78702), (312, 68612), (408, 52468), (416, 51459), (442, 48432), (544, 39351), (624, 34306), (663, 32288), (816, 26234), (884, 24216), (1009, 21216), (1248, 17153), (1326, 16144), (1632, 13117), (1768, 12108), (2018, 10608), (2652, 8072), (3027, 7072), (3536, 6054), (4036, 5304)]