21704265

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 41446080

約数和(自身を除く): 19741815

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 163, 165, 269, 489, 495, 807, 815, 1345, 1467, 1793, 2421, 2445, 2959, 4035, 5379, 7335, 8877, 8965, 12105, 14795, 16137, 26631, 26895, 43847, 44385, 80685, 131541, 133155, 219235, 394623, 482317, 657705, 1446951, 1973115, 2411585, 4340853, 7234755, 21704265]

約数ペア:

[(1, 21704265), (3, 7234755), (5, 4340853), (9, 2411585), (11, 1973115), (15, 1446951), (33, 657705), (45, 482317), (55, 394623), (99, 219235), (163, 133155), (165, 131541), (269, 80685), (489, 44385), (495, 43847), (807, 26895), (815, 26631), (1345, 16137), (1467, 14795), (1793, 12105), (2421, 8965), (2445, 8877), (2959, 7335), (4035, 5379)]