19959676

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 40336128

約数和(自身を除く): 20376452

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 163, 242, 253, 326, 484, 506, 652, 1012, 1331, 1793, 2662, 2783, 3586, 3749, 5324, 5566, 7172, 7498, 11132, 14996, 19723, 30613, 39446, 41239, 61226, 78892, 82478, 122452, 164956, 216953, 433906, 453629, 867812, 907258, 1814516, 4989919, 9979838, 19959676]

約数ペア:

[(1, 19959676), (2, 9979838), (4, 4989919), (11, 1814516), (22, 907258), (23, 867812), (44, 453629), (46, 433906), (92, 216953), (121, 164956), (163, 122452), (242, 82478), (253, 78892), (326, 61226), (484, 41239), (506, 39446), (652, 30613), (1012, 19723), (1331, 14996), (1793, 11132), (2662, 7498), (2783, 7172), (3586, 5566), (3749, 5324)]