19819665

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9371}}^1$

素因数の和:9429

約数の個数: 24

約数和(自身を含む): 35088768

約数和(自身を除く): 15269103

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9371, 28113, 46855, 84339, 140565, 421695, 440437, 1321311, 2202185, 3963933, 6606555, 19819665]

約数ペア:

[(1, 19819665), (3, 6606555), (5, 3963933), (9, 2202185), (15, 1321311), (45, 440437), (47, 421695), (141, 140565), (235, 84339), (423, 46855), (705, 28113), (2115, 9371)]