21283860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2099}}^1$

素因数の和:2137

約数の個数: 72

約数和(自身を含む): 64562400

約数和(自身を除く): 43278540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2099, 2535, 3380, 4198, 5070, 6297, 8396, 10140, 10495, 12594, 20990, 25188, 27287, 31485, 41980, 54574, 62970, 81861, 109148, 125940, 136435, 163722, 272870, 327444, 354731, 409305, 545740, 709462, 818610, 1064193, 1418924, 1637220, 1773655, 2128386, 3547310, 4256772, 5320965, 7094620, 10641930, 21283860]

約数ペア:

[(1, 21283860), (2, 10641930), (3, 7094620), (4, 5320965), (5, 4256772), (6, 3547310), (10, 2128386), (12, 1773655), (13, 1637220), (15, 1418924), (20, 1064193), (26, 818610), (30, 709462), (39, 545740), (52, 409305), (60, 354731), (65, 327444), (78, 272870), (130, 163722), (156, 136435), (169, 125940), (195, 109148), (260, 81861), (338, 62970), (390, 54574), (507, 41980), (676, 31485), (780, 27287), (845, 25188), (1014, 20990), (1690, 12594), (2028, 10495), (2099, 10140), (2535, 8396), (3380, 6297), (4198, 5070)]