19974295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{7727}}^1$

素因数の和:7790

約数の個数: 16

約数和(自身を含む): 26707968

約数和(自身を除く): 6733673

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 7727, 38635, 84997, 363169, 424985, 1815845, 3994859, 19974295]

約数ペア:

[(1, 19974295), (5, 3994859), (11, 1815845), (47, 424985), (55, 363169), (235, 84997), (517, 38635), (2585, 7727)]