20948368

素因数分解:

$2^4\times 7^1\times {\mathrm{359}}^1\times {\mathrm{521}}^1$

素因数の和:895

約数の個数: 40

約数和(自身を含む): 46604160

約数和(自身を除く): 25655792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 359, 521, 718, 1042, 1436, 2084, 2513, 2872, 3647, 4168, 5026, 5744, 7294, 8336, 10052, 14588, 20104, 29176, 40208, 58352, 187039, 374078, 748156, 1309273, 1496312, 2618546, 2992624, 5237092, 10474184, 20948368]

約数ペア:

[(1, 20948368), (2, 10474184), (4, 5237092), (7, 2992624), (8, 2618546), (14, 1496312), (16, 1309273), (28, 748156), (56, 374078), (112, 187039), (359, 58352), (521, 40208), (718, 29176), (1042, 20104), (1436, 14588), (2084, 10052), (2513, 8336), (2872, 7294), (3647, 5744), (4168, 5026)]