20749977

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1061}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 31312008

約数和(自身を除く): 10562031

約数列:

[1, 3, 9, 41, 53, 123, 159, 369, 477, 1061, 2173, 3183, 6519, 9549, 19557, 43501, 56233, 130503, 168699, 391509, 506097, 2305553, 6916659, 20749977]

約数ペア:

[(1, 20749977), (3, 6916659), (9, 2305553), (41, 506097), (53, 391509), (123, 168699), (159, 130503), (369, 56233), (477, 43501), (1061, 19557), (2173, 9549), (3183, 6519)]