21793669820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83821807}}^1$

素因数の和:83821829

約数の個数: 24

約数和(自身を含む): 49287223104

約数和(自身を除く): 27493553284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83821807, 167643614, 335287228, 419109035, 838218070, 1089683491, 1676436140, 2179366982, 4358733964, 5448417455, 10896834910, 21793669820]

約数ペア:

[(1, 21793669820), (2, 10896834910), (4, 5448417455), (5, 4358733964), (10, 2179366982), (13, 1676436140), (20, 1089683491), (26, 838218070), (52, 419109035), (65, 335287228), (130, 167643614), (260, 83821807)]