21243398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41983}}^1$

素因数の和:42019

約数の個数: 16

約数和(自身を含む): 36274176

約数和(自身を除く): 15030778

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41983, 83966, 461813, 923626, 965609, 1931218, 10621699, 21243398]

約数ペア:

[(1, 21243398), (2, 10621699), (11, 1931218), (22, 965609), (23, 923626), (46, 461813), (253, 83966), (506, 41983)]