638568326

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{121447}}^1$

素因数の和:121699

約数の個数: 16

約数和(自身を含む): 1049310720

約数和(自身を除く): 410742394

約数列:

[1, 2, 11, 22, 239, 478, 2629, 5258, 121447, 242894, 1335917, 2671834, 29025833, 58051666, 319284163, 638568326]

約数ペア:

[(1, 638568326), (2, 319284163), (11, 58051666), (22, 29025833), (239, 2671834), (478, 1335917), (2629, 242894), (5258, 121447)]