21210396

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16519}}^1$

素因数の和:16633

約数の個数: 24

約数和(自身を含む): 49956480

約数和(自身を除く): 28746084

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16519, 33038, 49557, 66076, 99114, 198228, 1767533, 3535066, 5302599, 7070132, 10605198, 21210396]

約数ペア:

[(1, 21210396), (2, 10605198), (3, 7070132), (4, 5302599), (6, 3535066), (12, 1767533), (107, 198228), (214, 99114), (321, 66076), (428, 49557), (642, 33038), (1284, 16519)]