21697806

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{278177}}^1$

素因数の和:278195

約数の個数: 16

約数和(自身を含む): 46733904

約数和(自身を除く): 25036098

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 278177, 556354, 834531, 1669062, 3616301, 7232602, 10848903, 21697806]

約数ペア:

[(1, 21697806), (2, 10848903), (3, 7232602), (6, 3616301), (13, 1669062), (26, 834531), (39, 556354), (78, 278177)]