21737385

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16657}}^1$

素因数の和:16697

約数の個数: 24

約数和(自身を含む): 38979720

約数和(自身を除く): 17242335

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16657, 49971, 83285, 149913, 249855, 483053, 749565, 1449159, 2415265, 4347477, 7245795, 21737385]

約数ペア:

[(1, 21737385), (3, 7245795), (5, 4347477), (9, 2415265), (15, 1449159), (29, 749565), (45, 483053), (87, 249855), (145, 149913), (261, 83285), (435, 49971), (1305, 16657)]