20491394

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 38541312

約数和(自身を除く): 18049918

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 271, 491, 542, 982, 1897, 2981, 3437, 3794, 5401, 5962, 6874, 10802, 20867, 37807, 41734, 75614, 133061, 266122, 931427, 1463671, 1862854, 2927342, 10245697, 20491394]

約数ペア:

[(1, 20491394), (2, 10245697), (7, 2927342), (11, 1862854), (14, 1463671), (22, 931427), (77, 266122), (154, 133061), (271, 75614), (491, 41734), (542, 37807), (982, 20867), (1897, 10802), (2981, 6874), (3437, 5962), (3794, 5401)]