20493116

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 42696192

約数和(自身を除く): 22203076

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 131, 148, 151, 259, 262, 302, 518, 524, 604, 917, 1036, 1057, 1834, 2114, 3668, 4228, 4847, 5587, 9694, 11174, 19388, 19781, 22348, 33929, 39109, 39562, 67858, 78218, 79124, 135716, 138467, 156436, 276934, 553868, 731897, 1463794, 2927588, 5123279, 10246558, 20493116]

約数ペア:

[(1, 20493116), (2, 10246558), (4, 5123279), (7, 2927588), (14, 1463794), (28, 731897), (37, 553868), (74, 276934), (131, 156436), (148, 138467), (151, 135716), (259, 79124), (262, 78218), (302, 67858), (518, 39562), (524, 39109), (604, 33929), (917, 22348), (1036, 19781), (1057, 19388), (1834, 11174), (2114, 9694), (3668, 5587), (4228, 4847)]