28491147

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1277}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 42930576

約数和(自身を除く): 14439429

約数列:

[1, 3, 9, 37, 67, 111, 201, 333, 603, 1277, 2479, 3831, 7437, 11493, 22311, 47249, 85559, 141747, 256677, 425241, 770031, 3165683, 9497049, 28491147]

約数ペア:

[(1, 28491147), (3, 9497049), (9, 3165683), (37, 770031), (67, 425241), (111, 256677), (201, 141747), (333, 85559), (603, 47249), (1277, 22311), (2479, 11493), (3831, 7437)]