21357652

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:711

約数の個数: 24

約数和(自身を含む): 38223360

約数和(自身を除く): 16865708

約数列:

[1, 2, 4, 71, 142, 157, 284, 314, 479, 628, 958, 1916, 11147, 22294, 34009, 44588, 68018, 75203, 136036, 150406, 300812, 5339413, 10678826, 21357652]

約数ペア:

[(1, 21357652), (2, 10678826), (4, 5339413), (71, 300812), (142, 150406), (157, 136036), (284, 75203), (314, 68018), (479, 44588), (628, 34009), (958, 22294), (1916, 11147)]