21105574

素因数分解:

$2^1\times 7^2\times {\mathrm{283}}^1\times {\mathrm{761}}^1$

素因数の和:1060

約数の個数: 24

約数和(自身を含む): 37005768

約数和(自身を除く): 15900194

約数列:

[1, 2, 7, 14, 49, 98, 283, 566, 761, 1522, 1981, 3962, 5327, 10654, 13867, 27734, 37289, 74578, 215363, 430726, 1507541, 3015082, 10552787, 21105574]

約数ペア:

[(1, 21105574), (2, 10552787), (7, 3015082), (14, 1507541), (49, 430726), (98, 215363), (283, 74578), (566, 37289), (761, 27734), (1522, 13867), (1981, 10654), (3962, 5327)]