138567681

素因数分解:

$3^2\times 7^1\times {\mathrm{547}}^1\times {\mathrm{4021}}^1$

素因数の和:4581

約数の個数: 24

約数和(自身を含む): 229221824

約数和(自身を除く): 90654143

約数列:

[1, 3, 7, 9, 21, 63, 547, 1641, 3829, 4021, 4923, 11487, 12063, 28147, 34461, 36189, 84441, 253323, 2199487, 6598461, 15396409, 19795383, 46189227, 138567681]

約数ペア:

[(1, 138567681), (3, 46189227), (7, 19795383), (9, 15396409), (21, 6598461), (63, 2199487), (547, 253323), (1641, 84441), (3829, 36189), (4021, 34461), (4923, 28147), (11487, 12063)]