18990387

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7057}}^1$

素因数の和:7099

約数の個数: 24

約数和(自身を含む): 30829344

約数和(自身を除く): 11838957

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 7057, 21171, 63513, 91741, 162311, 275223, 486933, 825669, 1460799, 2110043, 6330129, 18990387]

約数ペア:

[(1, 18990387), (3, 6330129), (9, 2110043), (13, 1460799), (23, 825669), (39, 486933), (69, 275223), (117, 162311), (207, 91741), (299, 63513), (897, 21171), (2691, 7057)]