20853693

素因数分解:

$3^4\times 7^1\times {\mathrm{36779}}^1$

素因数の和:36798

約数の個数: 20

約数和(自身を含む): 35603040

約数和(自身を除く): 14749347

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36779, 110337, 257453, 331011, 772359, 993033, 2317077, 2979099, 6951231, 20853693]

約数ペア:

[(1, 20853693), (3, 6951231), (7, 2979099), (9, 2317077), (21, 993033), (27, 772359), (63, 331011), (81, 257453), (189, 110337), (567, 36779)]