19946115

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21107}}^1$

素因数の和:21128

約数の個数: 32

約数和(自身を含む): 40527360

約数和(自身を除く): 20581245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21107, 63321, 105535, 147749, 189963, 316605, 443247, 569889, 738745, 949815, 1329741, 2216235, 2849445, 3989223, 6648705, 19946115]

約数ペア:

[(1, 19946115), (3, 6648705), (5, 3989223), (7, 2849445), (9, 2216235), (15, 1329741), (21, 949815), (27, 738745), (35, 569889), (45, 443247), (63, 316605), (105, 189963), (135, 147749), (189, 105535), (315, 63321), (945, 21107)]