28591647

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{2903}}^1$

素因数の和:2987

約数の個数: 24

約数和(自身を含む): 45023616

約数和(自身を除く): 16431969

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 2903, 3283, 8709, 9849, 20321, 60963, 142247, 194501, 426741, 583503, 1361507, 4084521, 9530549, 28591647]

約数ペア:

[(1, 28591647), (3, 9530549), (7, 4084521), (21, 1361507), (49, 583503), (67, 426741), (147, 194501), (201, 142247), (469, 60963), (1407, 20321), (2903, 9849), (3283, 8709)]