19912781147

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{8689}}^1\times {\mathrm{17231}}^1$

素因数の和:25946

約数の個数: 16

約数和(自身を含む): 23959372800

約数和(自身を除く): 4046591653

約数列:

[1, 7, 19, 133, 8689, 17231, 60823, 120617, 165091, 327389, 1155637, 2291723, 149720159, 1048041113, 2844683021, 19912781147]

約数ペア:

[(1, 19912781147), (7, 2844683021), (19, 1048041113), (133, 149720159), (8689, 2291723), (17231, 1155637), (60823, 327389), (120617, 165091)]