19982097

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 29842176

約数和(自身を除く): 9860079

約数列:

[1, 3, 9, 47, 97, 141, 291, 423, 487, 873, 1461, 4383, 4559, 13677, 22889, 41031, 47239, 68667, 141717, 206001, 425151, 2220233, 6660699, 19982097]

約数ペア:

[(1, 19982097), (3, 6660699), (9, 2220233), (47, 425151), (97, 206001), (141, 141717), (291, 68667), (423, 47239), (487, 41031), (873, 22889), (1461, 13677), (4383, 4559)]