21042538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{50341}}^1$

素因数の和:50373

約数の個数: 16

約数和(自身を含む): 36246240

約数和(自身を除く): 15203702

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 50341, 100682, 553751, 956479, 1107502, 1912958, 10521269, 21042538]

約数ペア:

[(1, 21042538), (2, 10521269), (11, 1912958), (19, 1107502), (22, 956479), (38, 553751), (209, 100682), (418, 50341)]