21166328

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 19476232

約数列:

[1, 2, 4, 8, 83, 127, 166, 251, 254, 332, 502, 508, 664, 1004, 1016, 2008, 10541, 20833, 21082, 31877, 41666, 42164, 63754, 83332, 84328, 127508, 166664, 255016, 2645791, 5291582, 10583164, 21166328]

約数ペア:

[(1, 21166328), (2, 10583164), (4, 5291582), (8, 2645791), (83, 255016), (127, 166664), (166, 127508), (251, 84328), (254, 83332), (332, 63754), (502, 42164), (508, 41666), (664, 31877), (1004, 21082), (1016, 20833), (2008, 10541)]