153881

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:128

約数の個数: 16

約数和(自身を含む): 201600

約数和(自身を除く): 47719

約数列:

[1, 7, 13, 19, 89, 91, 133, 247, 623, 1157, 1691, 1729, 8099, 11837, 21983, 153881]

約数ペア:

[(1, 153881), (7, 21983), (13, 11837), (19, 8099), (89, 1729), (91, 1691), (133, 1157), (247, 623)]