21161986

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{613}}^1$

素因数の和:1077

約数の個数: 16

約数和(自身を含む): 32647608

約数和(自身を除く): 11485622

約数列:

[1, 2, 41, 82, 421, 613, 842, 1226, 17261, 25133, 34522, 50266, 258073, 516146, 10580993, 21161986]

約数ペア:

[(1, 21161986), (2, 10580993), (41, 516146), (82, 258073), (421, 50266), (613, 34522), (842, 25133), (1226, 17261)]