217778858

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{430393}}^1$

素因数の和:430429

約数の個数: 16

約数和(自身を含む): 371860416

約数和(自身を除く): 154081558

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 430393, 860786, 4734323, 9468646, 9899039, 19798078, 108889429, 217778858]

約数ペア:

[(1, 217778858), (2, 108889429), (11, 19798078), (22, 9899039), (23, 9468646), (46, 4734323), (253, 860786), (506, 430393)]