18231837

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 28086912

約数和(自身を除く): 9855075

約数列:

[1, 3, 13, 17, 39, 51, 107, 221, 257, 321, 663, 771, 1391, 1819, 3341, 4173, 4369, 5457, 10023, 13107, 23647, 27499, 56797, 70941, 82497, 170391, 357487, 467483, 1072461, 1402449, 6077279, 18231837]

約数ペア:

[(1, 18231837), (3, 6077279), (13, 1402449), (17, 1072461), (39, 467483), (51, 357487), (107, 170391), (221, 82497), (257, 70941), (321, 56797), (663, 27499), (771, 23647), (1391, 13107), (1819, 10023), (3341, 5457), (4173, 4369)]