28975317

素因数分解:

$3^1\times 7^2\times {\mathrm{439}}^1\times {\mathrm{449}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 45144000

約数和(自身を除く): 16168683

約数列:

[1, 3, 7, 21, 49, 147, 439, 449, 1317, 1347, 3073, 3143, 9219, 9429, 21511, 22001, 64533, 66003, 197111, 591333, 1379777, 4139331, 9658439, 28975317]

約数ペア:

[(1, 28975317), (3, 9658439), (7, 4139331), (21, 1379777), (49, 591333), (147, 197111), (439, 66003), (449, 64533), (1317, 22001), (1347, 21511), (3073, 9429), (3143, 9219)]