21328473

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1637}}^1$

素因数の和:1784

約数の個数: 16

約数和(自身を含む): 29405376

約数和(自身を除く): 8076903

約数列:

[1, 3, 43, 101, 129, 303, 1637, 4343, 4911, 13029, 70391, 165337, 211173, 496011, 7109491, 21328473]

約数ペア:

[(1, 21328473), (3, 7109491), (43, 496011), (101, 211173), (129, 165337), (303, 70391), (1637, 13029), (4343, 4911)]