18487924

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3907}}^1$

素因数の和:3944

約数の個数: 36

約数和(自身を含む): 40049184

約数和(自身を除く): 21561260

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 3907, 4732, 7814, 15628, 27349, 50791, 54698, 101582, 109396, 203164, 355537, 660283, 711074, 1320566, 1422148, 2641132, 4621981, 9243962, 18487924]

約数ペア:

[(1, 18487924), (2, 9243962), (4, 4621981), (7, 2641132), (13, 1422148), (14, 1320566), (26, 711074), (28, 660283), (52, 355537), (91, 203164), (169, 109396), (182, 101582), (338, 54698), (364, 50791), (676, 27349), (1183, 15628), (2366, 7814), (3907, 4732)]