21055194

素因数分解:

$2^1\times 3^3\times {\mathrm{389911}}^1$

素因数の和:389922

約数の個数: 16

約数和(自身を含む): 46789440

約数和(自身を除く): 25734246

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389911, 779822, 1169733, 2339466, 3509199, 7018398, 10527597, 21055194]

約数ペア:

[(1, 21055194), (2, 10527597), (3, 7018398), (6, 3509199), (9, 2339466), (18, 1169733), (27, 779822), (54, 389911)]