20872564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1423}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 38675840

約数和(自身を除く): 17803276

約数列:

[1, 2, 4, 19, 38, 76, 193, 386, 772, 1423, 2846, 3667, 5692, 7334, 14668, 27037, 54074, 108148, 274639, 549278, 1098556, 5218141, 10436282, 20872564]

約数ペア:

[(1, 20872564), (2, 10436282), (4, 5218141), (19, 1098556), (38, 549278), (76, 274639), (193, 108148), (386, 54074), (772, 27037), (1423, 14668), (2846, 7334), (3667, 5692)]