21036795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107881}}^1$

素因数の和:107902

約数の個数: 16

約数和(自身を含む): 36248352

約数和(自身を除く): 15211557

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 107881, 323643, 539405, 1402453, 1618215, 4207359, 7012265, 21036795]

約数ペア:

[(1, 21036795), (3, 7012265), (5, 4207359), (13, 1618215), (15, 1402453), (39, 539405), (65, 323643), (195, 107881)]