28077861

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{9619}}^1$

素因数の和:9768

約数の個数: 16

約数和(自身を含む): 43097600

約数和(自身を除く): 15019739

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 9619, 28857, 67333, 201999, 1337041, 4011123, 9359287, 28077861]

約数ペア:

[(1, 28077861), (3, 9359287), (7, 4011123), (21, 1337041), (139, 201999), (417, 67333), (973, 28857), (2919, 9619)]