1290218259

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{640943}}^1$

素因数の和:641018

約数の個数: 16

約数和(自身を含む): 1907449344

約数和(自身を除く): 617231085

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 640943, 1922829, 7050373, 21151119, 39097523, 117292569, 430072753, 1290218259]

約数ペア:

[(1, 1290218259), (3, 430072753), (11, 117292569), (33, 39097523), (61, 21151119), (183, 7050373), (671, 1922829), (2013, 640943)]