20513883

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30941}}^1$

素因数の和:30974

約数の個数: 16

約数和(自身を含む): 31189536

約数和(自身を除く): 10675653

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 30941, 92823, 402233, 525997, 1206699, 1577991, 6837961, 20513883]

約数ペア:

[(1, 20513883), (3, 6837961), (13, 1577991), (17, 1206699), (39, 525997), (51, 402233), (221, 92823), (663, 30941)]