20732684

素因数分解:

$2^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{761}}^1$

素因数の和:918

約数の個数: 36

約数和(自身を含む): 42565320

約数和(自身を除く): 21832636

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 139, 196, 278, 556, 761, 973, 1522, 1946, 3044, 3892, 5327, 6811, 10654, 13622, 21308, 27244, 37289, 74578, 105779, 149156, 211558, 423116, 740453, 1480906, 2961812, 5183171, 10366342, 20732684]

約数ペア:

[(1, 20732684), (2, 10366342), (4, 5183171), (7, 2961812), (14, 1480906), (28, 740453), (49, 423116), (98, 211558), (139, 149156), (196, 105779), (278, 74578), (556, 37289), (761, 27244), (973, 21308), (1522, 13622), (1946, 10654), (3044, 6811), (3892, 5327)]