21000620188

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{122096629}}^1$

素因数の和:122096676

約数の個数: 12

約数和(自身を含む): 37605762040

約数和(自身を除く): 16605141852

約数列:

[1, 2, 4, 43, 86, 172, 122096629, 244193258, 488386516, 5250155047, 10500310094, 21000620188]

約数ペア:

[(1, 21000620188), (2, 10500310094), (4, 5250155047), (43, 488386516), (86, 244193258), (172, 122096629)]