638248898

素因数分解:

$2^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{131381}}^1$

素因数の和:131737

約数の個数: 16

約数和(自身を含む): 1097302464

約数和(自身を除く): 459053566

約数列:

[1, 2, 7, 14, 347, 694, 2429, 4858, 131381, 262762, 919667, 1839334, 45589207, 91178414, 319124449, 638248898]

約数ペア:

[(1, 638248898), (2, 319124449), (7, 91178414), (14, 45589207), (347, 1839334), (694, 919667), (2429, 262762), (4858, 131381)]