214638417

素因数分解:

$3^4\times 7^1\times {\mathrm{378551}}^1$

素因数の和:378570

約数の個数: 20

約数和(自身を含む): 366438336

約数和(自身を除く): 151799919

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 378551, 1135653, 2649857, 3406959, 7949571, 10220877, 23848713, 30662631, 71546139, 214638417]

約数ペア:

[(1, 214638417), (3, 71546139), (7, 30662631), (9, 23848713), (21, 10220877), (27, 7949571), (63, 3406959), (81, 2649857), (189, 1135653), (567, 378551)]