20539036

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2437}}^1$

素因数の和:2498

約数の個数: 36

約数和(自身を含む): 42801528

約数和(自身を除く): 22262492

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2437, 4214, 4874, 8428, 9748, 17059, 34118, 68236, 104791, 119413, 209582, 238826, 419164, 477652, 733537, 1467074, 2934148, 5134759, 10269518, 20539036]

約数ペア:

[(1, 20539036), (2, 10269518), (4, 5134759), (7, 2934148), (14, 1467074), (28, 733537), (43, 477652), (49, 419164), (86, 238826), (98, 209582), (172, 119413), (196, 104791), (301, 68236), (602, 34118), (1204, 17059), (2107, 9748), (2437, 8428), (4214, 4874)]