20355439

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 22790880

約数和(自身を除く): 2435441

約数列:

[1, 13, 37, 101, 419, 481, 1313, 3737, 5447, 15503, 42319, 48581, 201539, 550147, 1565803, 20355439]

約数ペア:

[(1, 20355439), (13, 1565803), (37, 550147), (101, 201539), (419, 48581), (481, 42319), (1313, 15503), (3737, 5447)]