19591187

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 25665024

約数和(自身を除く): 6073837

約数列:

[1, 7, 11, 43, 61, 77, 97, 301, 427, 473, 671, 679, 1067, 2623, 3311, 4171, 4697, 5917, 7469, 18361, 28853, 29197, 41419, 45881, 65087, 201971, 254431, 321167, 455609, 1781017, 2798741, 19591187]

約数ペア:

[(1, 19591187), (7, 2798741), (11, 1781017), (43, 455609), (61, 321167), (77, 254431), (97, 201971), (301, 65087), (427, 45881), (473, 41419), (671, 29197), (679, 28853), (1067, 18361), (2623, 7469), (3311, 5917), (4171, 4697)]