18934405

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 27777024

約数和(自身を除く): 8842619

約数列:

[1, 5, 7, 23, 35, 43, 115, 161, 215, 301, 547, 805, 989, 1505, 2735, 3829, 4945, 6923, 12581, 19145, 23521, 34615, 62905, 88067, 117605, 164647, 440335, 540983, 823235, 2704915, 3786881, 18934405]

約数ペア:

[(1, 18934405), (5, 3786881), (7, 2704915), (23, 823235), (35, 540983), (43, 440335), (115, 164647), (161, 117605), (215, 88067), (301, 62905), (547, 34615), (805, 23521), (989, 19145), (1505, 12581), (2735, 6923), (3829, 4945)]