20704912

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{467}}^1$

素因数の和:655

約数の個数: 40

約数和(自身を含む): 42827616

約数和(自身を除く): 22122704

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 163, 272, 326, 467, 652, 934, 1304, 1868, 2608, 2771, 3736, 5542, 7472, 7939, 11084, 15878, 22168, 31756, 44336, 63512, 76121, 127024, 152242, 304484, 608968, 1217936, 1294057, 2588114, 5176228, 10352456, 20704912]

約数ペア:

[(1, 20704912), (2, 10352456), (4, 5176228), (8, 2588114), (16, 1294057), (17, 1217936), (34, 608968), (68, 304484), (136, 152242), (163, 127024), (272, 76121), (326, 63512), (467, 44336), (652, 31756), (934, 22168), (1304, 15878), (1868, 11084), (2608, 7939), (2771, 7472), (3736, 5542)]