20854911

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90281}}^1$

素因数の和:90302

約数の個数: 16

約数和(自身を含む): 34668288

約数和(自身を除く): 13813377

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90281, 270843, 631967, 993091, 1895901, 2979273, 6951637, 20854911]

約数ペア:

[(1, 20854911), (3, 6951637), (7, 2979273), (11, 1895901), (21, 993091), (33, 631967), (77, 270843), (231, 90281)]