19770129

素因数分解:

$3^3\times {\mathrm{103}}^1\times {\mathrm{7109}}^1$

素因数の和:7221

約数の個数: 16

約数和(自身を含む): 29577600

約数和(自身を除く): 9807471

約数列:

[1, 3, 9, 27, 103, 309, 927, 2781, 7109, 21327, 63981, 191943, 732227, 2196681, 6590043, 19770129]

約数ペア:

[(1, 19770129), (3, 6590043), (9, 2196681), (27, 732227), (103, 191943), (309, 63981), (927, 21327), (2781, 7109)]