21494340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2437}}^1$

素因数の和:2466

約数の個数: 108

約数和(自身を含む): 75875436

約数和(自身を除く): 54381096

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2437, 2940, 4410, 4874, 7311, 8820, 9748, 12185, 14622, 17059, 21933, 24370, 29244, 34118, 36555, 43866, 48740, 51177, 68236, 73110, 85295, 87732, 102354, 109665, 119413, 146220, 153531, 170590, 204708, 219330, 238826, 255885, 307062, 341180, 358239, 438660, 477652, 511770, 597065, 614124, 716478, 767655, 1023540, 1074717, 1194130, 1432956, 1535310, 1791195, 2149434, 2388260, 3070620, 3582390, 4298868, 5373585, 7164780, 10747170, 21494340]

約数ペア:

[(1, 21494340), (2, 10747170), (3, 7164780), (4, 5373585), (5, 4298868), (6, 3582390), (7, 3070620), (9, 2388260), (10, 2149434), (12, 1791195), (14, 1535310), (15, 1432956), (18, 1194130), (20, 1074717), (21, 1023540), (28, 767655), (30, 716478), (35, 614124), (36, 597065), (42, 511770), (45, 477652), (49, 438660), (60, 358239), (63, 341180), (70, 307062), (84, 255885), (90, 238826), (98, 219330), (105, 204708), (126, 170590), (140, 153531), (147, 146220), (180, 119413), (196, 109665), (210, 102354), (245, 87732), (252, 85295), (294, 73110), (315, 68236), (420, 51177), (441, 48740), (490, 43866), (588, 36555), (630, 34118), (735, 29244), (882, 24370), (980, 21933), (1260, 17059), (1470, 14622), (1764, 12185), (2205, 9748), (2437, 8820), (2940, 7311), (4410, 4874)]