21000292761

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4001}}^1\times {\mathrm{10867}}^1$

素因数の和:14901

約数の個数: 32

約数和(自身を含む): 33403189248

約数和(自身を除く): 12402896487

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 4001, 10867, 12003, 28007, 32601, 76069, 84021, 92023, 228207, 249941, 276069, 644161, 749823, 1749587, 1932483, 5248761, 43478867, 130436601, 304352069, 913056207, 1000013941, 3000041823, 7000097587, 21000292761]

約数ペア:

[(1, 21000292761), (3, 7000097587), (7, 3000041823), (21, 1000013941), (23, 913056207), (69, 304352069), (161, 130436601), (483, 43478867), (4001, 5248761), (10867, 1932483), (12003, 1749587), (28007, 749823), (32601, 644161), (76069, 276069), (84021, 249941), (92023, 228207)]