19687404

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 53625600

約数和(自身を除く): 33938196

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 37, 44, 58, 66, 74, 87, 111, 116, 132, 139, 148, 174, 222, 278, 319, 348, 407, 417, 444, 556, 638, 814, 834, 957, 1073, 1221, 1276, 1529, 1628, 1668, 1914, 2146, 2442, 3058, 3219, 3828, 4031, 4292, 4587, 4884, 5143, 6116, 6438, 8062, 9174, 10286, 11803, 12093, 12876, 15429, 16124, 18348, 20572, 23606, 24186, 30858, 35409, 44341, 47212, 48372, 56573, 61716, 70818, 88682, 113146, 133023, 141636, 149147, 169719, 177364, 226292, 266046, 298294, 339438, 447441, 532092, 596588, 678876, 894882, 1640617, 1789764, 3281234, 4921851, 6562468, 9843702, 19687404]

約数ペア:

[(1, 19687404), (2, 9843702), (3, 6562468), (4, 4921851), (6, 3281234), (11, 1789764), (12, 1640617), (22, 894882), (29, 678876), (33, 596588), (37, 532092), (44, 447441), (58, 339438), (66, 298294), (74, 266046), (87, 226292), (111, 177364), (116, 169719), (132, 149147), (139, 141636), (148, 133023), (174, 113146), (222, 88682), (278, 70818), (319, 61716), (348, 56573), (407, 48372), (417, 47212), (444, 44341), (556, 35409), (638, 30858), (814, 24186), (834, 23606), (957, 20572), (1073, 18348), (1221, 16124), (1276, 15429), (1529, 12876), (1628, 12093), (1668, 11803), (1914, 10286), (2146, 9174), (2442, 8062), (3058, 6438), (3219, 6116), (3828, 5143), (4031, 4884), (4292, 4587)]