20856816

素因数分解:

$2^4\times 3^2\times {\mathrm{144839}}^1$

素因数の和:144853

約数の個数: 30

約数和(自身を含む): 58370520

約数和(自身を除く): 37513704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 144839, 289678, 434517, 579356, 869034, 1158712, 1303551, 1738068, 2317424, 2607102, 3476136, 5214204, 6952272, 10428408, 20856816]

約数ペア:

[(1, 20856816), (2, 10428408), (3, 6952272), (4, 5214204), (6, 3476136), (8, 2607102), (9, 2317424), (12, 1738068), (16, 1303551), (18, 1158712), (24, 869034), (36, 579356), (48, 434517), (72, 289678), (144, 144839)]