21563658

素因数分解:

$2^1\times 3^4\times {\mathrm{133109}}^1$

素因数の和:133123

約数の個数: 20

約数和(自身を含む): 48318930

約数和(自身を除く): 26755272

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 133109, 266218, 399327, 798654, 1197981, 2395962, 3593943, 7187886, 10781829, 21563658]

約数ペア:

[(1, 21563658), (2, 10781829), (3, 7187886), (6, 3593943), (9, 2395962), (18, 1197981), (27, 798654), (54, 399327), (81, 266218), (162, 133109)]