19187918

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{1109}}^1$

素因数の和:1363

約数の個数: 16

約数和(自身を含む): 29650320

約数和(自身を除く): 10462402

約数列:

[1, 2, 41, 82, 211, 422, 1109, 2218, 8651, 17302, 45469, 90938, 233999, 467998, 9593959, 19187918]

約数ペア:

[(1, 19187918), (2, 9593959), (41, 467998), (82, 233999), (211, 90938), (422, 45469), (1109, 17302), (2218, 8651)]