21670768

素因数分解:

$2^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1069}}^1$

素因数の和:1265

約数の個数: 40

約数和(自身を含む): 48295520

約数和(自身を除く): 26624752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 181, 362, 724, 1069, 1267, 1448, 2138, 2534, 2896, 4276, 5068, 7483, 8552, 10136, 14966, 17104, 20272, 29932, 59864, 119728, 193489, 386978, 773956, 1354423, 1547912, 2708846, 3095824, 5417692, 10835384, 21670768]

約数ペア:

[(1, 21670768), (2, 10835384), (4, 5417692), (7, 3095824), (8, 2708846), (14, 1547912), (16, 1354423), (28, 773956), (56, 386978), (112, 193489), (181, 119728), (362, 59864), (724, 29932), (1069, 20272), (1267, 17104), (1448, 14966), (2138, 10136), (2534, 8552), (2896, 7483), (4276, 5068)]