21704553

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3947}}^1$

素因数の和:4013

約数の個数: 24

約数和(自身を含む): 34489728

約数和(自身を除く): 12785175

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3947, 5499, 11841, 35523, 51311, 153933, 185509, 461799, 556527, 1669581, 2411617, 7234851, 21704553]

約数ペア:

[(1, 21704553), (3, 7234851), (9, 2411617), (13, 1669581), (39, 556527), (47, 461799), (117, 185509), (141, 153933), (423, 51311), (611, 35523), (1833, 11841), (3947, 5499)]