18539156

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 33143880

約数和(自身を除く): 14604724

約数列:

[1, 2, 4, 101, 109, 202, 218, 404, 421, 436, 842, 1684, 11009, 22018, 42521, 44036, 45889, 85042, 91778, 170084, 183556, 4634789, 9269578, 18539156]

約数ペア:

[(1, 18539156), (2, 9269578), (4, 4634789), (101, 183556), (109, 170084), (202, 91778), (218, 85042), (404, 45889), (421, 44036), (436, 42521), (842, 22018), (1684, 11009)]