18756567

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 27799200

約数和(自身を除く): 9042633

約数列:

[1, 3, 9, 71, 149, 197, 213, 447, 591, 639, 1341, 1773, 10579, 13987, 29353, 31737, 41961, 88059, 95211, 125883, 264177, 2084063, 6252189, 18756567]

約数ペア:

[(1, 18756567), (3, 6252189), (9, 2084063), (71, 264177), (149, 125883), (197, 95211), (213, 88059), (447, 41961), (591, 31737), (639, 29353), (1341, 13987), (1773, 10579)]