21459060

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{811}}^1$

素因数の和:843

約数の個数: 144

約数和(自身を含む): 77757120

約数和(自身を除く): 56298060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 811, 882, 945, 980, 1260, 1323, 1470, 1622, 1764, 1890, 2205, 2433, 2646, 2940, 3244, 3780, 4055, 4410, 4866, 5292, 5677, 6615, 7299, 8110, 8820, 9732, 11354, 12165, 13230, 14598, 16220, 17031, 21897, 22708, 24330, 26460, 28385, 29196, 34062, 36495, 39739, 43794, 48660, 51093, 56770, 68124, 72990, 79478, 85155, 87588, 102186, 109485, 113540, 119217, 145980, 153279, 158956, 170310, 198695, 204372, 218970, 238434, 255465, 306558, 340620, 357651, 397390, 437940, 476868, 510930, 596085, 613116, 715302, 766395, 794780, 1021860, 1072953, 1192170, 1430604, 1532790, 1788255, 2145906, 2384340, 3065580, 3576510, 4291812, 5364765, 7153020, 10729530, 21459060]

約数ペア:

[(1, 21459060), (2, 10729530), (3, 7153020), (4, 5364765), (5, 4291812), (6, 3576510), (7, 3065580), (9, 2384340), (10, 2145906), (12, 1788255), (14, 1532790), (15, 1430604), (18, 1192170), (20, 1072953), (21, 1021860), (27, 794780), (28, 766395), (30, 715302), (35, 613116), (36, 596085), (42, 510930), (45, 476868), (49, 437940), (54, 397390), (60, 357651), (63, 340620), (70, 306558), (84, 255465), (90, 238434), (98, 218970), (105, 204372), (108, 198695), (126, 170310), (135, 158956), (140, 153279), (147, 145980), (180, 119217), (189, 113540), (196, 109485), (210, 102186), (245, 87588), (252, 85155), (270, 79478), (294, 72990), (315, 68124), (378, 56770), (420, 51093), (441, 48660), (490, 43794), (540, 39739), (588, 36495), (630, 34062), (735, 29196), (756, 28385), (811, 26460), (882, 24330), (945, 22708), (980, 21897), (1260, 17031), (1323, 16220), (1470, 14598), (1622, 13230), (1764, 12165), (1890, 11354), (2205, 9732), (2433, 8820), (2646, 8110), (2940, 7299), (3244, 6615), (3780, 5677), (4055, 5292), (4410, 4866)]