19639788

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 53932032

約数和(自身を除く): 34292244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 127, 147, 196, 254, 263, 294, 381, 508, 526, 588, 762, 789, 889, 1052, 1524, 1578, 1778, 1841, 2667, 3156, 3556, 3682, 5334, 5523, 6223, 7364, 10668, 11046, 12446, 12887, 18669, 22092, 24892, 25774, 33401, 37338, 38661, 51548, 66802, 74676, 77322, 100203, 133604, 154644, 200406, 233807, 400812, 467614, 701421, 935228, 1402842, 1636649, 2805684, 3273298, 4909947, 6546596, 9819894, 19639788]

約数ペア:

[(1, 19639788), (2, 9819894), (3, 6546596), (4, 4909947), (6, 3273298), (7, 2805684), (12, 1636649), (14, 1402842), (21, 935228), (28, 701421), (42, 467614), (49, 400812), (84, 233807), (98, 200406), (127, 154644), (147, 133604), (196, 100203), (254, 77322), (263, 74676), (294, 66802), (381, 51548), (508, 38661), (526, 37338), (588, 33401), (762, 25774), (789, 24892), (889, 22092), (1052, 18669), (1524, 12887), (1578, 12446), (1778, 11046), (1841, 10668), (2667, 7364), (3156, 6223), (3556, 5523), (3682, 5334)]