20921388

素因数分解:

$2^2\times 3^1\times {\mathrm{149}}^1\times {\mathrm{11701}}^1$

素因数の和:11857

約数の個数: 24

約数和(自身を含む): 49148400

約数和(自身を除く): 28227012

約数列:

[1, 2, 3, 4, 6, 12, 149, 298, 447, 596, 894, 1788, 11701, 23402, 35103, 46804, 70206, 140412, 1743449, 3486898, 5230347, 6973796, 10460694, 20921388]

約数ペア:

[(1, 20921388), (2, 10460694), (3, 6973796), (4, 5230347), (6, 3486898), (12, 1743449), (149, 140412), (298, 70206), (447, 46804), (596, 35103), (894, 23402), (1788, 11701)]