18815481

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3967}}^1$

素因数の和:4021

約数の個数: 24

約数和(自身を含む): 29712384

約数和(自身を除く): 10896903

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 3967, 4743, 11901, 35703, 67439, 122977, 202317, 368931, 606951, 1106793, 2090609, 6271827, 18815481]

約数ペア:

[(1, 18815481), (3, 6271827), (9, 2090609), (17, 1106793), (31, 606951), (51, 368931), (93, 202317), (153, 122977), (279, 67439), (527, 35703), (1581, 11901), (3967, 4743)]