18748455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 34038144

約数和(自身を除く): 15289689

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 83, 111, 165, 185, 249, 407, 415, 555, 913, 1221, 1245, 1369, 2035, 2739, 3071, 4107, 4565, 6105, 6845, 9213, 13695, 15059, 15355, 20535, 33781, 45177, 46065, 75295, 101343, 113627, 168905, 225885, 340881, 506715, 568135, 1249897, 1704405, 3749691, 6249485, 18748455]

約数ペア:

[(1, 18748455), (3, 6249485), (5, 3749691), (11, 1704405), (15, 1249897), (33, 568135), (37, 506715), (55, 340881), (83, 225885), (111, 168905), (165, 113627), (185, 101343), (249, 75295), (407, 46065), (415, 45177), (555, 33781), (913, 20535), (1221, 15355), (1245, 15059), (1369, 13695), (2035, 9213), (2739, 6845), (3071, 6105), (4107, 4565)]