21221868

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{47797}}^1$

素因数の和:47841

約数の個数: 24

約数和(自身を含む): 50857072

約数和(自身を除く): 29635204

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 47797, 95594, 143391, 191188, 286782, 573564, 1768489, 3536978, 5305467, 7073956, 10610934, 21221868]

約数ペア:

[(1, 21221868), (2, 10610934), (3, 7073956), (4, 5305467), (6, 3536978), (12, 1768489), (37, 573564), (74, 286782), (111, 191188), (148, 143391), (222, 95594), (444, 47797)]