20189781213

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{284191}}^1$

素因数の和:284417

約数の個数: 32

約数和(自身を含む): 32738918400

約数和(自身を除く): 12549137187

約数列:

[1, 3, 7, 17, 21, 51, 119, 199, 357, 597, 1393, 3383, 4179, 10149, 23681, 71043, 284191, 852573, 1989337, 4831247, 5968011, 14493741, 33818729, 56554009, 101456187, 169662027, 395878063, 961418153, 1187634189, 2884254459, 6729927071, 20189781213]

約数ペア:

[(1, 20189781213), (3, 6729927071), (7, 2884254459), (17, 1187634189), (21, 961418153), (51, 395878063), (119, 169662027), (199, 101456187), (357, 56554009), (597, 33818729), (1393, 14493741), (3383, 5968011), (4179, 4831247), (10149, 1989337), (23681, 852573), (71043, 284191)]