17996812821

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{51272971}}^1$

素因数の和:51272993

約数の個数: 16

約数和(自身を含む): 28712864320

約数和(自身を除く): 10716051499

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 51272971, 153818913, 461456739, 666548623, 1384370217, 1999645869, 5998937607, 17996812821]

約数ペア:

[(1, 17996812821), (3, 5998937607), (9, 1999645869), (13, 1384370217), (27, 666548623), (39, 461456739), (117, 153818913), (351, 51272971)]