20691890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2063}}^1$

素因数の和:2146

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 19432270

約数列:

[1, 2, 5, 10, 17, 34, 59, 85, 118, 170, 295, 590, 1003, 2006, 2063, 4126, 5015, 10030, 10315, 20630, 35071, 70142, 121717, 175355, 243434, 350710, 608585, 1217170, 2069189, 4138378, 10345945, 20691890]

約数ペア:

[(1, 20691890), (2, 10345945), (5, 4138378), (10, 2069189), (17, 1217170), (34, 608585), (59, 350710), (85, 243434), (118, 175355), (170, 121717), (295, 70142), (590, 35071), (1003, 20630), (2006, 10315), (2063, 10030), (4126, 5015)]