19555921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{13367}}^1$

素因数の和:13404

約数の個数: 16

約数和(自身を含む): 25666560

約数和(自身を除く): 6110639

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 13367, 93569, 147037, 253973, 1029259, 1777811, 2793703, 19555921]

約数ペア:

[(1, 19555921), (7, 2793703), (11, 1777811), (19, 1029259), (77, 253973), (133, 147037), (209, 93569), (1463, 13367)]