19931779

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 24806400

約数和(自身を除く): 4874621

約数列:

[1, 7, 19, 49, 79, 133, 271, 553, 931, 1501, 1897, 3871, 5149, 10507, 13279, 21409, 36043, 73549, 149863, 252301, 406771, 1049041, 2847397, 19931779]

約数ペア:

[(1, 19931779), (7, 2847397), (19, 1049041), (49, 406771), (79, 252301), (133, 149863), (271, 73549), (553, 36043), (931, 21409), (1501, 13279), (1897, 10507), (3871, 5149)]