20795726

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 20261554

約数列:

[1, 2, 7, 14, 17, 23, 29, 34, 46, 58, 119, 131, 161, 203, 238, 262, 322, 391, 406, 493, 667, 782, 917, 986, 1334, 1834, 2227, 2737, 3013, 3451, 3799, 4454, 4669, 5474, 6026, 6902, 7598, 9338, 11339, 15589, 21091, 22678, 26593, 31178, 42182, 51221, 53186, 64583, 79373, 87377, 102442, 129166, 158746, 174754, 358547, 452081, 611639, 717094, 904162, 1223278, 1485409, 2970818, 10397863, 20795726]

約数ペア:

[(1, 20795726), (2, 10397863), (7, 2970818), (14, 1485409), (17, 1223278), (23, 904162), (29, 717094), (34, 611639), (46, 452081), (58, 358547), (119, 174754), (131, 158746), (161, 129166), (203, 102442), (238, 87377), (262, 79373), (322, 64583), (391, 53186), (406, 51221), (493, 42182), (667, 31178), (782, 26593), (917, 22678), (986, 21091), (1334, 15589), (1834, 11339), (2227, 9338), (2737, 7598), (3013, 6902), (3451, 6026), (3799, 5474), (4454, 4669)]