20651738

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:913

約数の個数: 16

約数和(自身を含む): 31547880

約数和(自身を除く): 10896142

約数列:

[1, 2, 89, 178, 181, 362, 641, 1282, 16109, 32218, 57049, 114098, 116021, 232042, 10325869, 20651738]

約数ペア:

[(1, 20651738), (2, 10325869), (89, 232042), (178, 116021), (181, 114098), (362, 57049), (641, 32218), (1282, 16109)]