18984009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10046391

約数列:

[1, 3, 11, 29, 33, 83, 87, 239, 249, 319, 717, 913, 957, 2407, 2629, 2739, 6931, 7221, 7887, 19837, 20793, 26477, 59511, 76241, 79431, 218207, 228723, 575273, 654621, 1725819, 6328003, 18984009]

約数ペア:

[(1, 18984009), (3, 6328003), (11, 1725819), (29, 654621), (33, 575273), (83, 228723), (87, 218207), (239, 79431), (249, 76241), (319, 59511), (717, 26477), (913, 20793), (957, 19837), (2407, 7887), (2629, 7221), (2739, 6931)]