28089159

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^2\times {\mathrm{251}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 43569792

約数和(自身を除く): 15480633

約数列:

[1, 3, 7, 21, 73, 219, 251, 511, 753, 1533, 1757, 5271, 5329, 15987, 18323, 37303, 54969, 111909, 128261, 384783, 1337579, 4012737, 9363053, 28089159]

約数ペア:

[(1, 28089159), (3, 9363053), (7, 4012737), (21, 1337579), (73, 384783), (219, 128261), (251, 111909), (511, 54969), (753, 37303), (1533, 18323), (1757, 15987), (5271, 5329)]