218628297

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{397}}^1\times {\mathrm{1423}}^1$

素因数の和:1869

約数の個数: 24

約数和(自身を含む): 324182144

約数和(自身を除く): 105553847

約数列:

[1, 3, 9, 43, 129, 387, 397, 1191, 1423, 3573, 4269, 12807, 17071, 51213, 61189, 153639, 183567, 550701, 564931, 1694793, 5084379, 24292033, 72876099, 218628297]

約数ペア:

[(1, 218628297), (3, 72876099), (9, 24292033), (43, 5084379), (129, 1694793), (387, 564931), (397, 550701), (1191, 183567), (1423, 153639), (3573, 61189), (4269, 51213), (12807, 17071)]