81018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{643}}^1$

素因数の和:658

約数の個数: 24

約数和(自身を含む): 200928

約数和(自身を除く): 119910

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 643, 1286, 1929, 3858, 4501, 5787, 9002, 11574, 13503, 27006, 40509, 81018]

約数ペア:

[(1, 81018), (2, 40509), (3, 27006), (6, 13503), (7, 11574), (9, 9002), (14, 5787), (18, 4501), (21, 3858), (42, 1929), (63, 1286), (126, 643)]