21887829

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4129}}^1$

素因数の和:4185

約数の個数: 24

約数和(自身を含む): 34361600

約数和(自身を除く): 12473771

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 4129, 5301, 12387, 37161, 78451, 127999, 235353, 383997, 706059, 1151991, 2431981, 7295943, 21887829]

約数ペア:

[(1, 21887829), (3, 7295943), (9, 2431981), (19, 1151991), (31, 706059), (57, 383997), (93, 235353), (171, 127999), (279, 78451), (589, 37161), (1767, 12387), (4129, 5301)]