890489739

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1583}}^1$

素因数の和:1815

約数の個数: 32

約数和(自身を含む): 1277337600

約数和(自身を除く): 386847861

約数列:

[1, 3, 19, 57, 71, 139, 213, 417, 1349, 1583, 2641, 4047, 4749, 7923, 9869, 29607, 30077, 90231, 112393, 187511, 220037, 337179, 562533, 660111, 2135467, 4180703, 6406401, 12542109, 15622627, 46867881, 296829913, 890489739]

約数ペア:

[(1, 890489739), (3, 296829913), (19, 46867881), (57, 15622627), (71, 12542109), (139, 6406401), (213, 4180703), (417, 2135467), (1349, 660111), (1583, 562533), (2641, 337179), (4047, 220037), (4749, 187511), (7923, 112393), (9869, 90231), (29607, 30077)]