20423249

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{5413}}^1$

素因数の和:5445

約数の個数: 16

約数和(自身を含む): 25987200

約数和(自身を除く): 5563951

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 5413, 37891, 59543, 265237, 416801, 1856659, 2917607, 20423249]

約数ペア:

[(1, 20423249), (7, 2917607), (11, 1856659), (49, 416801), (77, 265237), (343, 59543), (539, 37891), (3773, 5413)]