20512972791

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{11339399}}^1$

素因数の和:11339475

約数の個数: 16

約数和(自身を含む): 30843168000

約数和(自身を除く): 10330195209

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 11339399, 34018197, 102054591, 306163773, 759739733, 2279219199, 6837657597, 20512972791]

約数ペア:

[(1, 20512972791), (3, 6837657597), (9, 2279219199), (27, 759739733), (67, 306163773), (201, 102054591), (603, 34018197), (1809, 11339399)]