81865231

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1183

約数の個数: 24

約数和(自身を含む): 100465920

約数和(自身を除く): 18600689

約数列:

[1, 7, 29, 49, 53, 203, 371, 1087, 1421, 1537, 2597, 7609, 10759, 31523, 53263, 57611, 75313, 220661, 403277, 1544627, 1670719, 2822939, 11695033, 81865231]

約数ペア:

[(1, 81865231), (7, 11695033), (29, 2822939), (49, 1670719), (53, 1544627), (203, 403277), (371, 220661), (1087, 75313), (1421, 57611), (1537, 53263), (2597, 31523), (7609, 10759)]