18191961

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1483}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 27780480

約数和(自身を除く): 9588519

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1483, 4089, 4449, 12267, 13347, 43007, 69701, 129021, 209103, 387063, 627309, 2021329, 6063987, 18191961]

約数ペア:

[(1, 18191961), (3, 6063987), (9, 2021329), (29, 627309), (47, 387063), (87, 209103), (141, 129021), (261, 69701), (423, 43007), (1363, 13347), (1483, 12267), (4089, 4449)]