21419601

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 34664448

約数和(自身を除く): 13244847

約数列:

[1, 3, 7, 21, 23, 61, 69, 161, 183, 427, 483, 727, 1281, 1403, 2181, 4209, 5089, 9821, 15267, 16721, 29463, 44347, 50163, 117047, 133041, 310429, 351141, 931287, 1019981, 3059943, 7139867, 21419601]

約数ペア:

[(1, 21419601), (3, 7139867), (7, 3059943), (21, 1019981), (23, 931287), (61, 351141), (69, 310429), (161, 133041), (183, 117047), (427, 50163), (483, 44347), (727, 29463), (1281, 16721), (1403, 15267), (2181, 9821), (4209, 5089)]