20318391

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39607}}^1$

素因数の和:39635

約数の個数: 16

約数和(自身を含む): 31686400

約数和(自身を除く): 11368009

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39607, 118821, 356463, 752533, 1069389, 2257599, 6772797, 20318391]

約数ペア:

[(1, 20318391), (3, 6772797), (9, 2257599), (19, 1069389), (27, 752533), (57, 356463), (171, 118821), (513, 39607)]