218708

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 447552

約数和(自身を除く): 228844

約数列:

[1, 2, 4, 7, 14, 28, 73, 107, 146, 214, 292, 428, 511, 749, 1022, 1498, 2044, 2996, 7811, 15622, 31244, 54677, 109354, 218708]

約数ペア:

[(1, 218708), (2, 109354), (4, 54677), (7, 31244), (14, 15622), (28, 7811), (73, 2996), (107, 2044), (146, 1498), (214, 1022), (292, 749), (428, 511)]