19720636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8069}}^1$

素因数の和:8133

約数の個数: 24

約数和(自身を含む): 37961280

約数和(自身を除く): 18240644

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8069, 16138, 32276, 104897, 209794, 379243, 419588, 758486, 1516972, 4930159, 9860318, 19720636]

約数ペア:

[(1, 19720636), (2, 9860318), (4, 4930159), (13, 1516972), (26, 758486), (47, 419588), (52, 379243), (94, 209794), (188, 104897), (611, 32276), (1222, 16138), (2444, 8069)]