16804431

素因数分解:

$3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{743}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 27855360

約数和(自身を除く): 11050929

約数列:

[1, 3, 7, 9, 21, 63, 359, 743, 1077, 2229, 2513, 3231, 5201, 6687, 7539, 15603, 22617, 46809, 266737, 800211, 1867159, 2400633, 5601477, 16804431]

約数ペア:

[(1, 16804431), (3, 5601477), (7, 2400633), (9, 1867159), (21, 800211), (63, 266737), (359, 46809), (743, 22617), (1077, 15603), (2229, 7539), (2513, 6687), (3231, 5201)]