39894281

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 49603680

約数和(自身を除く): 9709399

約数列:

[1, 7, 19, 49, 73, 133, 511, 587, 931, 1387, 3577, 4109, 9709, 11153, 28763, 42851, 67963, 78071, 299957, 546497, 814169, 2099699, 5699183, 39894281]

約数ペア:

[(1, 39894281), (7, 5699183), (19, 2099699), (49, 814169), (73, 546497), (133, 299957), (511, 78071), (587, 67963), (931, 42851), (1387, 28763), (3577, 11153), (4109, 9709)]