21977392

素因数分解:

$2^4\times {\mathrm{823}}^1\times {\mathrm{1669}}^1$

素因数の和:2500

約数の個数: 20

約数和(自身を含む): 42658480

約数和(自身を除く): 20681088

約数列:

[1, 2, 4, 8, 16, 823, 1646, 1669, 3292, 3338, 6584, 6676, 13168, 13352, 26704, 1373587, 2747174, 5494348, 10988696, 21977392]

約数ペア:

[(1, 21977392), (2, 10988696), (4, 5494348), (8, 2747174), (16, 1373587), (823, 26704), (1646, 13352), (1669, 13168), (3292, 6676), (3338, 6584)]