21478240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 58834944

約数和(自身を除く): 37356704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 127, 140, 151, 160, 224, 254, 280, 302, 508, 560, 604, 635, 755, 889, 1016, 1057, 1120, 1208, 1270, 1510, 1778, 2032, 2114, 2416, 2540, 3020, 3556, 4064, 4228, 4445, 4832, 5080, 5285, 6040, 7112, 8456, 8890, 10160, 10570, 12080, 14224, 16912, 17780, 19177, 20320, 21140, 24160, 28448, 33824, 35560, 38354, 42280, 71120, 76708, 84560, 95885, 134239, 142240, 153416, 169120, 191770, 268478, 306832, 383540, 536956, 613664, 671195, 767080, 1073912, 1342390, 1534160, 2147824, 2684780, 3068320, 4295648, 5369560, 10739120, 21478240]

約数ペア:

[(1, 21478240), (2, 10739120), (4, 5369560), (5, 4295648), (7, 3068320), (8, 2684780), (10, 2147824), (14, 1534160), (16, 1342390), (20, 1073912), (28, 767080), (32, 671195), (35, 613664), (40, 536956), (56, 383540), (70, 306832), (80, 268478), (112, 191770), (127, 169120), (140, 153416), (151, 142240), (160, 134239), (224, 95885), (254, 84560), (280, 76708), (302, 71120), (508, 42280), (560, 38354), (604, 35560), (635, 33824), (755, 28448), (889, 24160), (1016, 21140), (1057, 20320), (1120, 19177), (1208, 17780), (1270, 16912), (1510, 14224), (1778, 12080), (2032, 10570), (2114, 10160), (2416, 8890), (2540, 8456), (3020, 7112), (3556, 6040), (4064, 5285), (4228, 5080), (4445, 4832)]