19637181

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{11923}}^1$

素因数の和:11993

約数の個数: 16

約数和(自身を含む): 29571520

約数和(自身を除く): 9934339

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 11923, 35769, 107307, 321921, 727303, 2181909, 6545727, 19637181]

約数ペア:

[(1, 19637181), (3, 6545727), (9, 2181909), (27, 727303), (61, 321921), (183, 107307), (549, 35769), (1647, 11923)]