1999921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1367}}^1$

素因数の和:1404

約数の個数: 16

約数和(自身を含む): 2626560

約数和(自身を除く): 626639

約数列:

[1, 7, 11, 19, 77, 133, 209, 1367, 1463, 9569, 15037, 25973, 105259, 181811, 285703, 1999921]

約数ペア:

[(1, 1999921), (7, 285703), (11, 181811), (19, 105259), (77, 25973), (133, 15037), (209, 9569), (1367, 1463)]