18851031

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 28005120

約数和(自身を除く): 9154089

約数列:

[1, 3, 9, 59, 131, 177, 271, 393, 531, 813, 1179, 2439, 7729, 15989, 23187, 35501, 47967, 69561, 106503, 143901, 319509, 2094559, 6283677, 18851031]

約数ペア:

[(1, 18851031), (3, 6283677), (9, 2094559), (59, 319509), (131, 143901), (177, 106503), (271, 69561), (393, 47967), (531, 35501), (813, 23187), (1179, 15989), (2439, 7729)]