201781971

素因数分解:

$3^2\times {\mathrm{29}}^2\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:620

約数の個数: 36

約数和(自身を含む): 308166768

約数和(自身を除く): 106384797

約数列:

[1, 3, 9, 29, 53, 87, 159, 261, 477, 503, 841, 1509, 1537, 2523, 4527, 4611, 7569, 13833, 14587, 26659, 43761, 44573, 79977, 131283, 133719, 239931, 401157, 423023, 773111, 1269069, 2319333, 3807207, 6957999, 22420219, 67260657, 201781971]

約数ペア:

[(1, 201781971), (3, 67260657), (9, 22420219), (29, 6957999), (53, 3807207), (87, 2319333), (159, 1269069), (261, 773111), (477, 423023), (503, 401157), (841, 239931), (1509, 133719), (1537, 131283), (2523, 79977), (4527, 44573), (4611, 43761), (7569, 26659), (13833, 14587)]