3994921

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{613}}^1$

素因数の和:653

約数の個数: 16

約数和(自身を含む): 4912000

約数和(自身を除く): 917079

約数列:

[1, 7, 19, 49, 133, 343, 613, 931, 4291, 6517, 11647, 30037, 81529, 210259, 570703, 3994921]

約数ペア:

[(1, 3994921), (7, 570703), (19, 210259), (49, 81529), (133, 30037), (343, 11647), (613, 6517), (931, 4291)]