20157921161

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1918523}}^1$

素因数の和:1918628

約数の個数: 16

約数和(自身を含む): 24557107200

約数和(自身を除く): 4399186039

約数列:

[1, 7, 19, 79, 133, 553, 1501, 10507, 1918523, 13429661, 36451937, 151563317, 255163559, 1060943219, 2879703023, 20157921161]

約数ペア:

[(1, 20157921161), (7, 2879703023), (19, 1060943219), (79, 255163559), (133, 151563317), (553, 36451937), (1501, 13429661), (10507, 1918523)]