20122679979

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{72124301}}^1$

素因数の和:72124338

約数の個数: 12

約数和(自身を含む): 30003709632

約数和(自身を除く): 9881029653

約数列:

[1, 3, 9, 31, 93, 279, 72124301, 216372903, 649118709, 2235853331, 6707559993, 20122679979]

約数ペア:

[(1, 20122679979), (3, 6707559993), (9, 2235853331), (31, 649118709), (93, 216372903), (279, 72124301)]