20039978

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{33289}}^1$

素因数の和:33341

約数の個数: 16

約数和(自身を含む): 35154240

約数和(自身を除く): 15114262

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 33289, 66578, 233023, 466046, 1431427, 2862854, 10019989, 20039978]

約数ペア:

[(1, 20039978), (2, 10019989), (7, 2862854), (14, 1431427), (43, 466046), (86, 233023), (301, 66578), (602, 33289)]