18874581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{30103}}^1$

素因数の和:30136

約数の個数: 16

約数和(自身を含む): 28899840

約数和(自身を除く): 10025259

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 30103, 90309, 331133, 571957, 993399, 1715871, 6291527, 18874581]

約数ペア:

[(1, 18874581), (3, 6291527), (11, 1715871), (19, 993399), (33, 571957), (57, 331133), (209, 90309), (627, 30103)]