19723815

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2689}}^1$

素因数の和:2863

約数の個数: 24

約数和(自身を含む): 34410480

約数和(自身を除く): 14686665

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 2689, 7335, 8067, 13445, 24201, 40335, 121005, 438307, 1314921, 2191535, 3944763, 6574605, 19723815]

約数ペア:

[(1, 19723815), (3, 6574605), (5, 3944763), (9, 2191535), (15, 1314921), (45, 438307), (163, 121005), (489, 40335), (815, 24201), (1467, 13445), (2445, 8067), (2689, 7335)]