156938174043

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{393328757}}^1$

素因数の和:393328786

約数の個数: 16

約数和(自身を含む): 251730405120

約数和(自身を除く): 94792231077

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 393328757, 1179986271, 2753301299, 7473246383, 8259903897, 22419739149, 52312724681, 156938174043]

約数ペア:

[(1, 156938174043), (3, 52312724681), (7, 22419739149), (19, 8259903897), (21, 7473246383), (57, 2753301299), (133, 1179986271), (399, 393328757)]