21681676

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{601}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 39443040

約数和(自身を除く): 17761364

約数列:

[1, 2, 4, 29, 58, 116, 311, 601, 622, 1202, 1244, 2404, 9019, 17429, 18038, 34858, 36076, 69716, 186911, 373822, 747644, 5420419, 10840838, 21681676]

約数ペア:

[(1, 21681676), (2, 10840838), (4, 5420419), (29, 747644), (58, 373822), (116, 186911), (311, 69716), (601, 36076), (622, 34858), (1202, 18038), (1244, 17429), (2404, 9019)]