81618298

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{2143}}^1$

素因数の和:2421

約数の個数: 16

約数和(自身を含む): 124266240

約数和(自身を除く): 42647942

約数列:

[1, 2, 137, 139, 274, 278, 2143, 4286, 19043, 38086, 293591, 297877, 587182, 595754, 40809149, 81618298]

約数ペア:

[(1, 81618298), (2, 40809149), (137, 595754), (139, 587182), (274, 297877), (278, 293591), (2143, 38086), (4286, 19043)]