20206791

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 31983120

約数和(自身を除く): 11776329

約数列:

[1, 3, 9, 11, 33, 99, 401, 509, 1203, 1527, 3609, 4411, 4581, 5599, 13233, 16797, 39699, 50391, 204109, 612327, 1836981, 2245199, 6735597, 20206791]

約数ペア:

[(1, 20206791), (3, 6735597), (9, 2245199), (11, 1836981), (33, 612327), (99, 204109), (401, 50391), (509, 39699), (1203, 16797), (1527, 13233), (3609, 5599), (4411, 4581)]