21695840

素因数分解:

$2^5\times 5^1\times {\mathrm{135599}}^1$

素因数の和:135614

約数の個数: 24

約数和(自身を含む): 51256800

約数和(自身を除く): 29560960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135599, 271198, 542396, 677995, 1084792, 1355990, 2169584, 2711980, 4339168, 5423960, 10847920, 21695840]

約数ペア:

[(1, 21695840), (2, 10847920), (4, 5423960), (5, 4339168), (8, 2711980), (10, 2169584), (16, 1355990), (20, 1084792), (32, 677995), (40, 542396), (80, 271198), (160, 135599)]