31981719

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{138449}}^1$

素因数の和:138470

約数の個数: 16

約数和(自身を含む): 53164800

約数和(自身を除く): 21183081

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 138449, 415347, 969143, 1522939, 2907429, 4568817, 10660573, 31981719]

約数ペア:

[(1, 31981719), (3, 10660573), (7, 4568817), (11, 2907429), (21, 1522939), (33, 969143), (77, 415347), (231, 138449)]