397551

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1721}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 661248

約数和(自身を除く): 263697

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 1721, 5163, 12047, 18931, 36141, 56793, 132517, 397551]

約数ペア:

[(1, 397551), (3, 132517), (7, 56793), (11, 36141), (21, 18931), (33, 12047), (77, 5163), (231, 1721)]