21990208

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{14939}}^1$

素因数の和:14974

約数の個数: 28

約数和(自身を含む): 45537120

約数和(自身を除く): 23546912

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 184, 368, 736, 1472, 14939, 29878, 59756, 119512, 239024, 343597, 478048, 687194, 956096, 1374388, 2748776, 5497552, 10995104, 21990208]

約数ペア:

[(1, 21990208), (2, 10995104), (4, 5497552), (8, 2748776), (16, 1374388), (23, 956096), (32, 687194), (46, 478048), (64, 343597), (92, 239024), (184, 119512), (368, 59756), (736, 29878), (1472, 14939)]