20538434

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 36474240

約数和(自身を除く): 15935806

約数列:

[1, 2, 7, 14, 43, 86, 109, 218, 301, 313, 602, 626, 763, 1526, 2191, 4382, 4687, 9374, 13459, 26918, 32809, 34117, 65618, 68234, 94213, 188426, 238819, 477638, 1467031, 2934062, 10269217, 20538434]

約数ペア:

[(1, 20538434), (2, 10269217), (7, 2934062), (14, 1467031), (43, 477638), (86, 238819), (109, 188426), (218, 94213), (301, 68234), (313, 65618), (602, 34117), (626, 32809), (763, 26918), (1526, 13459), (2191, 9374), (4382, 4687)]