20409843

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{2549}}^1$

素因数の和:2726

約数の個数: 16

約数和(自身を含む): 29008800

約数和(自身を除く): 8598957

約数列:

[1, 3, 17, 51, 157, 471, 2549, 2669, 7647, 8007, 43333, 129999, 400193, 1200579, 6803281, 20409843]

約数ペア:

[(1, 20409843), (3, 6803281), (17, 1200579), (51, 400193), (157, 129999), (471, 43333), (2549, 8007), (2669, 7647)]