21138740103

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{8885557}}^1$

素因数の和:8885634

約数の個数: 16

約数和(自身を含む): 30850657376

約数和(自身を除く): 9711917273

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 8885557, 26656671, 115512241, 346536723, 542018977, 1626056931, 7046246701, 21138740103]

約数ペア:

[(1, 21138740103), (3, 7046246701), (13, 1626056931), (39, 542018977), (61, 346536723), (183, 115512241), (793, 26656671), (2379, 8885557)]