19541997

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 29502720

約数和(自身を除く): 9960723

約数列:

[1, 3, 9, 31, 89, 93, 267, 279, 787, 801, 2361, 2759, 7083, 8277, 24397, 24831, 70043, 73191, 210129, 219573, 630387, 2171333, 6513999, 19541997]

約数ペア:

[(1, 19541997), (3, 6513999), (9, 2171333), (31, 630387), (89, 219573), (93, 210129), (267, 73191), (279, 70043), (787, 24831), (801, 24397), (2361, 8277), (2759, 7083)]