140978866

素因数分解:

$2^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{20509}}^1$

素因数の和:21009

約数の個数: 16

約数和(自身を含む): 242182080

約数和(自身を除く): 101203214

約数列:

[1, 2, 7, 14, 491, 982, 3437, 6874, 20509, 41018, 143563, 287126, 10069919, 20139838, 70489433, 140978866]

約数ペア:

[(1, 140978866), (2, 70489433), (7, 20139838), (14, 10069919), (491, 287126), (982, 143563), (3437, 41018), (6874, 20509)]