21971991621

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1\times {\mathrm{253049}}^1$

素因数の和:253436

約数の個数: 16

約数和(自身を含む): 29685801600

約数和(自身を除く): 7713809979

約数列:

[1, 3, 103, 281, 309, 843, 28943, 86829, 253049, 759147, 26064047, 71106769, 78192141, 213320307, 7323997207, 21971991621]

約数ペア:

[(1, 21971991621), (3, 7323997207), (103, 213320307), (281, 78192141), (309, 71106769), (843, 26064047), (28943, 759147), (86829, 253049)]