11718987

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2749}}^1$

素因数の和:2795

約数の個数: 24

約数和(自身を含む): 18810000

約数和(自身を除く): 7091013

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 2749, 4263, 8247, 19243, 57729, 79721, 134701, 239163, 404103, 558047, 1674141, 3906329, 11718987]

約数ペア:

[(1, 11718987), (3, 3906329), (7, 1674141), (21, 558047), (29, 404103), (49, 239163), (87, 134701), (147, 79721), (203, 57729), (609, 19243), (1421, 8247), (2749, 4263)]