21402704

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21929}}^1$

素因数の和:21998

約数の個数: 20

約数和(自身を含む): 42149460

約数和(自身を除く): 20746756

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21929, 43858, 87716, 175432, 350864, 1337669, 2675338, 5350676, 10701352, 21402704]

約数ペア:

[(1, 21402704), (2, 10701352), (4, 5350676), (8, 2675338), (16, 1337669), (61, 350864), (122, 175432), (244, 87716), (488, 43858), (976, 21929)]