1320840003

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2168867}}^1$

素因数の和:2168906

約数の個数: 16

約数和(自身を含む): 2082113280

約数和(自身を除く): 761273277

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 2168867, 6506601, 15182069, 45546207, 62897143, 188691429, 440280001, 1320840003]

約数ペア:

[(1, 1320840003), (3, 440280001), (7, 188691429), (21, 62897143), (29, 45546207), (87, 15182069), (203, 6506601), (609, 2168867)]