20147477

素因数分解:

$7^3\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:561

約数の個数: 16

約数和(自身を含む): 23712000

約数和(自身を除く): 3564523

約数列:

[1, 7, 49, 151, 343, 389, 1057, 2723, 7399, 19061, 51793, 58739, 133427, 411173, 2878211, 20147477]

約数ペア:

[(1, 20147477), (7, 2878211), (49, 411173), (151, 133427), (343, 58739), (389, 51793), (1057, 19061), (2723, 7399)]