21076407

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4951}}^1$

素因数の和:5011

約数の個数: 24

約数和(自身を含む): 33990528

約数和(自身を除く): 12914121

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 4951, 14853, 44559, 54461, 163383, 212893, 490149, 638679, 1916037, 2341823, 7025469, 21076407]

約数ペア:

[(1, 21076407), (3, 7025469), (9, 2341823), (11, 1916037), (33, 638679), (43, 490149), (99, 212893), (129, 163383), (387, 54461), (473, 44559), (1419, 14853), (4257, 4951)]