201521865

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{3221}}^1$

素因数の和:3369

約数の個数: 32

約数和(自身を含む): 333438336

約数和(自身を除く): 131916471

約数列:

[1, 3, 5, 15, 43, 97, 129, 215, 291, 485, 645, 1455, 3221, 4171, 9663, 12513, 16105, 20855, 48315, 62565, 138503, 312437, 415509, 692515, 937311, 1562185, 2077545, 4686555, 13434791, 40304373, 67173955, 201521865]

約数ペア:

[(1, 201521865), (3, 67173955), (5, 40304373), (15, 13434791), (43, 4686555), (97, 2077545), (129, 1562185), (215, 937311), (291, 692515), (485, 415509), (645, 312437), (1455, 138503), (3221, 62565), (4171, 48315), (9663, 20855), (12513, 16105)]