18980587

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 20782080

約数和(自身を除く): 1801493

約数列:

[1, 29, 31, 43, 491, 899, 1247, 1333, 14239, 15221, 21113, 38657, 441409, 612277, 654503, 18980587]

約数ペア:

[(1, 18980587), (29, 654503), (31, 612277), (43, 441409), (491, 38657), (899, 21113), (1247, 15221), (1333, 14239)]