21471272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157877}}^1$

素因数の和:157900

約数の個数: 16

約数和(自身を含む): 42627060

約数和(自身を除く): 21155788

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157877, 315754, 631508, 1263016, 2683909, 5367818, 10735636, 21471272]

約数ペア:

[(1, 21471272), (2, 10735636), (4, 5367818), (8, 2683909), (17, 1263016), (34, 631508), (68, 315754), (136, 157877)]