12221655

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 21543264

約数和(自身を除く): 9321609

約数列:

[1, 3, 5, 15, 19, 37, 57, 61, 95, 111, 183, 185, 285, 305, 361, 555, 703, 915, 1083, 1159, 1805, 2109, 2257, 3477, 3515, 5415, 5795, 6771, 10545, 11285, 13357, 17385, 22021, 33855, 40071, 42883, 66063, 66785, 110105, 128649, 200355, 214415, 330315, 643245, 814777, 2444331, 4073885, 12221655]

約数ペア:

[(1, 12221655), (3, 4073885), (5, 2444331), (15, 814777), (19, 643245), (37, 330315), (57, 214415), (61, 200355), (95, 128649), (111, 110105), (183, 66785), (185, 66063), (285, 42883), (305, 40071), (361, 33855), (555, 22021), (703, 17385), (915, 13357), (1083, 11285), (1159, 10545), (1805, 6771), (2109, 5795), (2257, 5415), (3477, 3515)]