21476049

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1399}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14005551

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1399, 2193, 4197, 5117, 9793, 15351, 23783, 29379, 60157, 71349, 166481, 180471, 421099, 499443, 1022669, 1263297, 3068007, 7158683, 21476049]

約数ペア:

[(1, 21476049), (3, 7158683), (7, 3068007), (17, 1263297), (21, 1022669), (43, 499443), (51, 421099), (119, 180471), (129, 166481), (301, 71349), (357, 60157), (731, 29379), (903, 23783), (1399, 15351), (2193, 9793), (4197, 5117)]