140000721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5237}}^1$

素因数の和:5333

約数の個数: 32

約数和(自身を含む): 227957760

約数和(自身を除く): 87957039

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 1273, 1407, 3819, 5237, 8911, 15711, 26733, 36659, 99503, 109977, 298509, 350879, 696521, 1052637, 2089563, 2456153, 6666701, 7368459, 20000103, 46666907, 140000721]

約数ペア:

[(1, 140000721), (3, 46666907), (7, 20000103), (19, 7368459), (21, 6666701), (57, 2456153), (67, 2089563), (133, 1052637), (201, 696521), (399, 350879), (469, 298509), (1273, 109977), (1407, 99503), (3819, 36659), (5237, 26733), (8911, 15711)]