19439908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{1087}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 36191232

約数和(自身を除く): 16751324

約数列:

[1, 2, 4, 17, 34, 68, 263, 526, 1052, 1087, 2174, 4348, 4471, 8942, 17884, 18479, 36958, 73916, 285881, 571762, 1143524, 4859977, 9719954, 19439908]

約数ペア:

[(1, 19439908), (2, 9719954), (4, 4859977), (17, 1143524), (34, 571762), (68, 285881), (263, 73916), (526, 36958), (1052, 18479), (1087, 17884), (2174, 8942), (4348, 4471)]