18638895

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1361}}^1$

素因数の和:1463

約数の個数: 32

約数和(自身を含む): 32949504

約数和(自身を除く): 14310609

約数列:

[1, 3, 5, 11, 15, 33, 55, 83, 165, 249, 415, 913, 1245, 1361, 2739, 4083, 4565, 6805, 13695, 14971, 20415, 44913, 74855, 112963, 224565, 338889, 564815, 1242593, 1694445, 3727779, 6212965, 18638895]

約数ペア:

[(1, 18638895), (3, 6212965), (5, 3727779), (11, 1694445), (15, 1242593), (33, 564815), (55, 338889), (83, 224565), (165, 112963), (249, 74855), (415, 44913), (913, 20415), (1245, 14971), (1361, 13695), (2739, 6805), (4083, 4565)]