21184695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 42419520

約数和(自身を除く): 21234825

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 109, 315, 327, 545, 617, 763, 981, 1635, 1851, 2289, 3085, 3815, 4319, 4905, 5553, 6867, 9255, 11445, 12957, 21595, 27765, 34335, 38871, 64785, 67253, 194355, 201759, 336265, 470771, 605277, 1008795, 1412313, 2353855, 3026385, 4236939, 7061565, 21184695]

約数ペア:

[(1, 21184695), (3, 7061565), (5, 4236939), (7, 3026385), (9, 2353855), (15, 1412313), (21, 1008795), (35, 605277), (45, 470771), (63, 336265), (105, 201759), (109, 194355), (315, 67253), (327, 64785), (545, 38871), (617, 34335), (763, 27765), (981, 21595), (1635, 12957), (1851, 11445), (2289, 9255), (3085, 6867), (3815, 5553), (4319, 4905)]