81638013

素因数分解:

$3^1\times {\mathrm{47}}^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 113247232

約数和(自身を除く): 31609219

約数列:

[1, 3, 47, 97, 127, 141, 291, 381, 2209, 4559, 5969, 6627, 12319, 13677, 17907, 36957, 214273, 280543, 578993, 642819, 841629, 1736979, 27212671, 81638013]

約数ペア:

[(1, 81638013), (3, 27212671), (47, 1736979), (97, 841629), (127, 642819), (141, 578993), (291, 280543), (381, 214273), (2209, 36957), (4559, 17907), (5969, 13677), (6627, 12319)]