20307843

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{401}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 31230576

約数和(自身を除く): 10922733

約数列:

[1, 3, 9, 17, 51, 153, 331, 401, 993, 1203, 2979, 3609, 5627, 6817, 16881, 20451, 50643, 61353, 132731, 398193, 1194579, 2256427, 6769281, 20307843]

約数ペア:

[(1, 20307843), (3, 6769281), (9, 2256427), (17, 1194579), (51, 398193), (153, 132731), (331, 61353), (401, 50643), (993, 20451), (1203, 16881), (2979, 6817), (3609, 5627)]