19721576

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 24515224

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 59, 94, 118, 127, 188, 236, 254, 329, 376, 413, 472, 508, 658, 826, 889, 1016, 1316, 1652, 1778, 2632, 2773, 3304, 3556, 5546, 5969, 7112, 7493, 11092, 11938, 14986, 19411, 22184, 23876, 29972, 38822, 41783, 47752, 52451, 59944, 77644, 83566, 104902, 155288, 167132, 209804, 334264, 352171, 419608, 704342, 1408684, 2465197, 2817368, 4930394, 9860788, 19721576]

約数ペア:

[(1, 19721576), (2, 9860788), (4, 4930394), (7, 2817368), (8, 2465197), (14, 1408684), (28, 704342), (47, 419608), (56, 352171), (59, 334264), (94, 209804), (118, 167132), (127, 155288), (188, 104902), (236, 83566), (254, 77644), (329, 59944), (376, 52451), (413, 47752), (472, 41783), (508, 38822), (658, 29972), (826, 23876), (889, 22184), (1016, 19411), (1316, 14986), (1652, 11938), (1778, 11092), (2632, 7493), (2773, 7112), (3304, 5969), (3556, 5546)]