17868721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1096

約数の個数: 16

約数和(自身を含む): 20554240

約数和(自身を除く): 2685519

約数列:

[1, 13, 19, 73, 247, 949, 991, 1387, 12883, 18031, 18829, 72343, 244777, 940459, 1374517, 17868721]

約数ペア:

[(1, 17868721), (13, 1374517), (19, 940459), (73, 244777), (247, 72343), (949, 18829), (991, 18031), (1387, 12883)]