20953587

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{859}}^1$

素因数の和:1082

約数の個数: 16

約数和(自身を含む): 28730880

約数和(自身を除く): 7777293

約数列:

[1, 3, 47, 141, 173, 519, 859, 2577, 8131, 24393, 40373, 121119, 148607, 445821, 6984529, 20953587]

約数ペア:

[(1, 20953587), (3, 6984529), (47, 445821), (141, 148607), (173, 121119), (519, 40373), (859, 24393), (2577, 8131)]