209557491

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{739}}^1$

素因数の和:1427

約数の個数: 32

約数和(自身を含む): 329199360

約数和(自身を除く): 119641869

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 661, 739, 1983, 2217, 7271, 8129, 8593, 9607, 21813, 24387, 25779, 28821, 94523, 105677, 283569, 317031, 488479, 1465437, 5373269, 6350227, 16119807, 19050681, 69852497, 209557491]

約数ペア:

[(1, 209557491), (3, 69852497), (11, 19050681), (13, 16119807), (33, 6350227), (39, 5373269), (143, 1465437), (429, 488479), (661, 317031), (739, 283569), (1983, 105677), (2217, 94523), (7271, 28821), (8129, 25779), (8593, 24387), (9607, 21813)]