20485161

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{271}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 30635904

約数和(自身を除く): 10150743

約数列:

[1, 3, 9, 37, 111, 227, 271, 333, 681, 813, 2043, 2439, 8399, 10027, 25197, 30081, 61517, 75591, 90243, 184551, 553653, 2276129, 6828387, 20485161]

約数ペア:

[(1, 20485161), (3, 6828387), (9, 2276129), (37, 553653), (111, 184551), (227, 90243), (271, 75591), (333, 61517), (681, 30081), (813, 25197), (2043, 10027), (2439, 8399)]