18994927

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{569}}^1$

素因数の和:846

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 3987473

約数列:

[1, 7, 19, 133, 251, 569, 1757, 3983, 4769, 10811, 33383, 75677, 142819, 999733, 2713561, 18994927]

約数ペア:

[(1, 18994927), (7, 2713561), (19, 999733), (133, 142819), (251, 75677), (569, 33383), (1757, 10811), (3983, 4769)]