19982711

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{569}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 23803200

約数和(自身を除く): 3820489

約数列:

[1, 7, 29, 173, 203, 569, 1211, 3983, 5017, 16501, 35119, 98437, 115507, 689059, 2854673, 19982711]

約数ペア:

[(1, 19982711), (7, 2854673), (29, 689059), (173, 115507), (203, 98437), (569, 35119), (1211, 16501), (3983, 5017)]