18725301

素因数分解:

$3^2\times 7^2\times {\mathrm{42461}}^1$

素因数の和:42481

約数の個数: 18

約数和(自身を含む): 31464342

約数和(自身を除く): 12739041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 42461, 127383, 297227, 382149, 891681, 2080589, 2675043, 6241767, 18725301]

約数ペア:

[(1, 18725301), (3, 6241767), (7, 2675043), (9, 2080589), (21, 891681), (49, 382149), (63, 297227), (147, 127383), (441, 42461)]