21264819

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{7039}}^1$

素因数の和:7114

約数の個数: 16

約数和(自身を含む): 30412800

約数和(自身を除く): 9147981

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 7039, 21117, 133741, 373067, 401223, 1119201, 7088273, 21264819]

約数ペア:

[(1, 21264819), (3, 7088273), (19, 1119201), (53, 401223), (57, 373067), (159, 133741), (1007, 21117), (3021, 7039)]