21827920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11863}}^1$

素因数の和:11899

約数の個数: 40

約数和(自身を含む): 52960896

約数和(自身を除く): 31132976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11863, 23726, 47452, 59315, 94904, 118630, 189808, 237260, 272849, 474520, 545698, 949040, 1091396, 1364245, 2182792, 2728490, 4365584, 5456980, 10913960, 21827920]

約数ペア:

[(1, 21827920), (2, 10913960), (4, 5456980), (5, 4365584), (8, 2728490), (10, 2182792), (16, 1364245), (20, 1091396), (23, 949040), (40, 545698), (46, 474520), (80, 272849), (92, 237260), (115, 189808), (184, 118630), (230, 94904), (368, 59315), (460, 47452), (920, 23726), (1840, 11863)]