15639561

素因数分解:

$3^4\times 7^1\times {\mathrm{27583}}^1$

素因数の和:27602

約数の個数: 20

約数和(自身を含む): 26701312

約数和(自身を除く): 11061751

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 27583, 82749, 193081, 248247, 579243, 744741, 1737729, 2234223, 5213187, 15639561]

約数ペア:

[(1, 15639561), (3, 5213187), (7, 2234223), (9, 1737729), (21, 744741), (27, 579243), (63, 248247), (81, 193081), (189, 82749), (567, 27583)]