19974885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{677}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 36709632

約数和(自身を除く): 16734747

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 281, 677, 843, 1405, 1967, 2031, 3385, 4215, 4739, 5901, 9835, 10155, 14217, 23695, 29505, 71085, 190237, 570711, 951185, 1331659, 2853555, 3994977, 6658295, 19974885]

約数ペア:

[(1, 19974885), (3, 6658295), (5, 3994977), (7, 2853555), (15, 1331659), (21, 951185), (35, 570711), (105, 190237), (281, 71085), (677, 29505), (843, 23695), (1405, 14217), (1967, 10155), (2031, 9835), (3385, 5901), (4215, 4739)]