20357404

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1785

約数の個数: 24

約数和(自身を含む): 36989568

約数和(自身を除く): 16632164

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 284, 1667, 3053, 3334, 6106, 6668, 12212, 71681, 118357, 143362, 236714, 286724, 473428, 5089351, 10178702, 20357404]

約数ペア:

[(1, 20357404), (2, 10178702), (4, 5089351), (43, 473428), (71, 286724), (86, 236714), (142, 143362), (172, 118357), (284, 71681), (1667, 12212), (3053, 6668), (3334, 6106)]