19803987

素因数分解:

$3^3\times 7^2\times {\mathrm{14969}}^1$

素因数の和:14992

約数の個数: 24

約数和(自身を含む): 34131600

約数和(自身を除く): 14327613

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 14969, 44907, 104783, 134721, 314349, 404163, 733481, 943047, 2200443, 2829141, 6601329, 19803987]

約数ペア:

[(1, 19803987), (3, 6601329), (7, 2829141), (9, 2200443), (21, 943047), (27, 733481), (49, 404163), (63, 314349), (147, 134721), (189, 104783), (441, 44907), (1323, 14969)]