420321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:332

約数の個数: 16

約数和(自身を含む): 626688

約数和(自身を除く): 206367

約数列:

[1, 3, 11, 33, 47, 141, 271, 517, 813, 1551, 2981, 8943, 12737, 38211, 140107, 420321]

約数ペア:

[(1, 420321), (3, 140107), (11, 38211), (33, 12737), (47, 8943), (141, 2981), (271, 1551), (517, 813)]