21819562

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:730

約数の個数: 24

約数和(自身を含む): 35332416

約数和(自身を除く): 13512854

約数列:

[1, 2, 19, 38, 47, 94, 361, 643, 722, 893, 1286, 1786, 12217, 16967, 24434, 30221, 33934, 60442, 232123, 464246, 574199, 1148398, 10909781, 21819562]

約数ペア:

[(1, 21819562), (2, 10909781), (19, 1148398), (38, 574199), (47, 464246), (94, 232123), (361, 60442), (643, 33934), (722, 30221), (893, 24434), (1286, 16967), (1786, 12217)]