21493998

素因数分解:

$2^1\times 3^4\times {\mathrm{132679}}^1$

素因数の和:132693

約数の個数: 20

約数和(自身を含む): 48162840

約数和(自身を除く): 26668842

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 132679, 265358, 398037, 796074, 1194111, 2388222, 3582333, 7164666, 10746999, 21493998]

約数ペア:

[(1, 21493998), (2, 10746999), (3, 7164666), (6, 3582333), (9, 2388222), (18, 1194111), (27, 796074), (54, 398037), (81, 265358), (162, 132679)]