81380691

素因数分解:

$3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{4597}}^1$

素因数の和:4891

約数の個数: 24

約数和(自身を含む): 134850144

約数和(自身を除く): 53469453

約数列:

[1, 3, 7, 9, 21, 63, 281, 843, 1967, 2529, 4597, 5901, 13791, 17703, 32179, 41373, 96537, 289611, 1291757, 3875271, 9042299, 11625813, 27126897, 81380691]

約数ペア:

[(1, 81380691), (3, 27126897), (7, 11625813), (9, 9042299), (21, 3875271), (63, 1291757), (281, 289611), (843, 96537), (1967, 41373), (2529, 32179), (4597, 17703), (5901, 13791)]