219977428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{217369}}^1$

素因数の和:217407

約数の個数: 24

約数和(自身を含む): 438217920

約数和(自身を除く): 218240492

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 217369, 434738, 869476, 2391059, 4782118, 4999487, 9564236, 9998974, 19997948, 54994357, 109988714, 219977428]

約数ペア:

[(1, 219977428), (2, 109988714), (4, 54994357), (11, 19997948), (22, 9998974), (23, 9564236), (44, 4999487), (46, 4782118), (92, 2391059), (253, 869476), (506, 434738), (1012, 217369)]