28180173

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70627}}^1$

素因数の和:70656

約数の個数: 16

約数和(自身を含む): 45201920

約数和(自身を除く): 17021747

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70627, 211881, 494389, 1341913, 1483167, 4025739, 9393391, 28180173]

約数ペア:

[(1, 28180173), (3, 9393391), (7, 4025739), (19, 1483167), (21, 1341913), (57, 494389), (133, 211881), (399, 70627)]