18383265

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 33445776

約数和(自身を除く): 15062511

約数列:

[1, 3, 5, 9, 15, 37, 45, 61, 111, 181, 183, 185, 305, 333, 543, 549, 555, 905, 915, 1629, 1665, 2257, 2715, 2745, 6697, 6771, 8145, 11041, 11285, 20091, 20313, 33123, 33485, 33855, 55205, 60273, 99369, 100455, 101565, 165615, 301365, 408517, 496845, 1225551, 2042585, 3676653, 6127755, 18383265]

約数ペア:

[(1, 18383265), (3, 6127755), (5, 3676653), (9, 2042585), (15, 1225551), (37, 496845), (45, 408517), (61, 301365), (111, 165615), (181, 101565), (183, 100455), (185, 99369), (305, 60273), (333, 55205), (543, 33855), (549, 33485), (555, 33123), (905, 20313), (915, 20091), (1629, 11285), (1665, 11041), (2257, 8145), (2715, 6771), (2745, 6697)]