21923840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2141}}^1$

素因数の和:2168

約数の個数: 48

約数和(自身を含む): 52628940

約数和(自身を除く): 30705100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2141, 2560, 4282, 5120, 8564, 10240, 10705, 17128, 21410, 34256, 42820, 68512, 85640, 137024, 171280, 274048, 342560, 548096, 685120, 1096192, 1370240, 2192384, 2740480, 4384768, 5480960, 10961920, 21923840]

約数ペア:

[(1, 21923840), (2, 10961920), (4, 5480960), (5, 4384768), (8, 2740480), (10, 2192384), (16, 1370240), (20, 1096192), (32, 685120), (40, 548096), (64, 342560), (80, 274048), (128, 171280), (160, 137024), (256, 85640), (320, 68512), (512, 42820), (640, 34256), (1024, 21410), (1280, 17128), (2048, 10705), (2141, 10240), (2560, 8564), (4282, 5120)]