20868178

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{821}}^1$

素因数の和:1073

約数の個数: 16

約数和(自身を含む): 31959360

約数和(自身を除く): 11091182

約数列:

[1, 2, 71, 142, 179, 358, 821, 1642, 12709, 25418, 58291, 116582, 146959, 293918, 10434089, 20868178]

約数ペア:

[(1, 20868178), (2, 10434089), (71, 293918), (142, 146959), (179, 116582), (358, 58291), (821, 25418), (1642, 12709)]