21399424

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5393}}^1$

素因数の和:5438

約数の個数: 32

約数和(自身を含む): 44015040

約数和(自身を除く): 22615616

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5393, 10786, 21572, 43144, 86288, 167183, 172576, 334366, 345152, 668732, 690304, 1337464, 2674928, 5349856, 10699712, 21399424]

約数ペア:

[(1, 21399424), (2, 10699712), (4, 5349856), (8, 2674928), (16, 1337464), (31, 690304), (32, 668732), (62, 345152), (64, 334366), (124, 172576), (128, 167183), (248, 86288), (496, 43144), (992, 21572), (1984, 10786), (3968, 5393)]