12920349

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5431}}^1$

素因数の和:5508

約数の個数: 16

約数和(自身を含む): 18859904

約数和(自身を除く): 5939555

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 5431, 16293, 70603, 211809, 331291, 993873, 4306783, 12920349]

約数ペア:

[(1, 12920349), (3, 4306783), (13, 993873), (39, 331291), (61, 211809), (183, 70603), (793, 16293), (2379, 5431)]