21990016

素因数分解:

$2^7\times {\mathrm{149}}^1\times {\mathrm{1153}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 44140500

約数和(自身を除く): 22150484

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 149, 298, 596, 1153, 1192, 2306, 2384, 4612, 4768, 9224, 9536, 18448, 19072, 36896, 73792, 147584, 171797, 343594, 687188, 1374376, 2748752, 5497504, 10995008, 21990016]

約数ペア:

[(1, 21990016), (2, 10995008), (4, 5497504), (8, 2748752), (16, 1374376), (32, 687188), (64, 343594), (128, 171797), (149, 147584), (298, 73792), (596, 36896), (1153, 19072), (1192, 18448), (2306, 9536), (2384, 9224), (4612, 4768)]