21519672

素因数分解:

$2^3\times 3^1\times {\mathrm{449}}^1\times {\mathrm{1997}}^1$

素因数の和:2455

約数の個数: 32

約数和(自身を含む): 53946000

約数和(自身を除く): 32426328

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 449, 898, 1347, 1796, 1997, 2694, 3592, 3994, 5388, 5991, 7988, 10776, 11982, 15976, 23964, 47928, 896653, 1793306, 2689959, 3586612, 5379918, 7173224, 10759836, 21519672]

約数ペア:

[(1, 21519672), (2, 10759836), (3, 7173224), (4, 5379918), (6, 3586612), (8, 2689959), (12, 1793306), (24, 896653), (449, 47928), (898, 23964), (1347, 15976), (1796, 11982), (1997, 10776), (2694, 7988), (3592, 5991), (3994, 5388)]