215127

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 24

約数和(自身を含む): 353808

約数和(自身を除く): 138681

約数列:

[1, 3, 9, 11, 33, 41, 53, 99, 123, 159, 369, 451, 477, 583, 1353, 1749, 2173, 4059, 5247, 6519, 19557, 23903, 71709, 215127]

約数ペア:

[(1, 215127), (3, 71709), (9, 23903), (11, 19557), (33, 6519), (41, 5247), (53, 4059), (99, 2173), (123, 1749), (159, 1353), (369, 583), (451, 477)]