81325818

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{645443}}^1$

素因数の和:645458

約数の個数: 24

約数和(自身を含む): 201378528

約数和(自身を除く): 120052710

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 645443, 1290886, 1936329, 3872658, 4518101, 5808987, 9036202, 11617974, 13554303, 27108606, 40662909, 81325818]

約数ペア:

[(1, 81325818), (2, 40662909), (3, 27108606), (6, 13554303), (7, 11617974), (9, 9036202), (14, 5808987), (18, 4518101), (21, 3872658), (42, 1936329), (63, 1290886), (126, 645443)]