20521227

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{1907}}^1$

素因数の和:2138

約数の個数: 16

約数和(自身を含む): 29123712

約数和(自身を除く): 8602485

約数列:

[1, 3, 17, 51, 211, 633, 1907, 3587, 5721, 10761, 32419, 97257, 402377, 1207131, 6840409, 20521227]

約数ペア:

[(1, 20521227), (3, 6840409), (17, 1207131), (51, 402377), (211, 97257), (633, 32419), (1907, 10761), (3587, 5721)]