20989737

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{937}}^1$

素因数の和:1093

約数の個数: 24

約数和(自身を含む): 32192160

約数和(自身を除く): 11202423

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 937, 1179, 2489, 2811, 7467, 8433, 17803, 22401, 53409, 122747, 160227, 368241, 1104723, 2332193, 6996579, 20989737]

約数ペア:

[(1, 20989737), (3, 6996579), (9, 2332193), (19, 1104723), (57, 368241), (131, 160227), (171, 122747), (393, 53409), (937, 22401), (1179, 17803), (2489, 8433), (2811, 7467)]