20103945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78839}}^1$

素因数の和:78864

約数の個数: 16

約数和(自身を含む): 34058880

約数和(自身を除く): 13954935

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78839, 236517, 394195, 1182585, 1340263, 4020789, 6701315, 20103945]

約数ペア:

[(1, 20103945), (3, 6701315), (5, 4020789), (15, 1340263), (17, 1182585), (51, 394195), (85, 236517), (255, 78839)]