17918271

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1052

約数の個数: 36

約数和(自身を含む): 30873024

約数和(自身を除く): 12954753

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 991, 2009, 2583, 2973, 6027, 6937, 8919, 18081, 20811, 40631, 48559, 62433, 121893, 145677, 284417, 365679, 437031, 853251, 1990919, 2559753, 5972757, 17918271]

約数ペア:

[(1, 17918271), (3, 5972757), (7, 2559753), (9, 1990919), (21, 853251), (41, 437031), (49, 365679), (63, 284417), (123, 145677), (147, 121893), (287, 62433), (369, 48559), (441, 40631), (861, 20811), (991, 18081), (2009, 8919), (2583, 6937), (2973, 6027)]