21556144

素因数分解:

$2^4\times {\mathrm{563}}^1\times {\mathrm{2393}}^1$

素因数の和:2964

約数の個数: 20

約数和(自身を含む): 41856696

約数和(自身を除く): 20300552

約数列:

[1, 2, 4, 8, 16, 563, 1126, 2252, 2393, 4504, 4786, 9008, 9572, 19144, 38288, 1347259, 2694518, 5389036, 10778072, 21556144]

約数ペア:

[(1, 21556144), (2, 10778072), (4, 5389036), (8, 2694518), (16, 1347259), (563, 38288), (1126, 19144), (2252, 9572), (2393, 9008), (4504, 4786)]