40031397

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{21911}}^1$

素因数の和:21953

約数の個数: 24

約数和(自身を含む): 68365440

約数和(自身を除く): 28334043

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 21911, 65733, 153377, 197199, 460131, 635419, 1380393, 1906257, 4447933, 5718771, 13343799, 40031397]

約数ペア:

[(1, 40031397), (3, 13343799), (7, 5718771), (9, 4447933), (21, 1906257), (29, 1380393), (63, 635419), (87, 460131), (203, 197199), (261, 153377), (609, 65733), (1827, 21911)]