19717918

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{1381}}^1$

素因数の和:1464

約数の個数: 24

約数和(自身を含む): 33085080

約数和(自身を除く): 13367162

約数列:

[1, 2, 11, 22, 59, 118, 121, 242, 649, 1298, 1381, 2762, 7139, 14278, 15191, 30382, 81479, 162958, 167101, 334202, 896269, 1792538, 9858959, 19717918]

約数ペア:

[(1, 19717918), (2, 9858959), (11, 1792538), (22, 896269), (59, 334202), (118, 167101), (121, 162958), (242, 81479), (649, 30382), (1298, 15191), (1381, 14278), (2762, 7139)]