12657981

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 20459520

約数和(自身を除く): 7801539

約数列:

[1, 3, 7, 21, 23, 69, 73, 161, 219, 359, 483, 511, 1077, 1533, 1679, 2513, 5037, 7539, 8257, 11753, 24771, 26207, 35259, 57799, 78621, 173397, 183449, 550347, 602761, 1808283, 4219327, 12657981]

約数ペア:

[(1, 12657981), (3, 4219327), (7, 1808283), (21, 602761), (23, 550347), (69, 183449), (73, 173397), (161, 78621), (219, 57799), (359, 35259), (483, 26207), (511, 24771), (1077, 11753), (1533, 8257), (1679, 7539), (2513, 5037)]