20803013

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 27236352

約数和(自身を除く): 6433339

約数列:

[1, 7, 11, 43, 61, 77, 103, 301, 427, 473, 671, 721, 1133, 2623, 3311, 4429, 4697, 6283, 7931, 18361, 28853, 31003, 43981, 48719, 69113, 201971, 270169, 341033, 483791, 1891183, 2971859, 20803013]

約数ペア:

[(1, 20803013), (7, 2971859), (11, 1891183), (43, 483791), (61, 341033), (77, 270169), (103, 201971), (301, 69113), (427, 48719), (473, 43981), (671, 31003), (721, 28853), (1133, 18361), (2623, 7931), (3311, 6283), (4429, 4697)]