20951853

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{8807}}^1$

素因数の和:8884

約数の個数: 16

約数和(自身を含む): 30581376

約数和(自身を除く): 9629523

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 8807, 26421, 114491, 343473, 537227, 1611681, 6983951, 20951853]

約数ペア:

[(1, 20951853), (3, 6983951), (13, 1611681), (39, 537227), (61, 343473), (183, 114491), (793, 26421), (2379, 8807)]