20578198

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{1223}}^1$

素因数の和:1451

約数の個数: 16

約数和(自身を含む): 31726080

約数和(自身を除く): 11147882

約数列:

[1, 2, 47, 94, 179, 358, 1223, 2446, 8413, 16826, 57481, 114962, 218917, 437834, 10289099, 20578198]

約数ペア:

[(1, 20578198), (2, 10289099), (47, 437834), (94, 218917), (179, 114962), (358, 57481), (1223, 16826), (2446, 8413)]