21220736

素因数分解:

$2^7\times {\mathrm{193}}^1\times {\mathrm{859}}^1$

素因数の和:1066

約数の個数: 32

約数和(自身を含む): 42544200

約数和(自身を除く): 21323464

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 386, 772, 859, 1544, 1718, 3088, 3436, 6176, 6872, 12352, 13744, 24704, 27488, 54976, 109952, 165787, 331574, 663148, 1326296, 2652592, 5305184, 10610368, 21220736]

約数ペア:

[(1, 21220736), (2, 10610368), (4, 5305184), (8, 2652592), (16, 1326296), (32, 663148), (64, 331574), (128, 165787), (193, 109952), (386, 54976), (772, 27488), (859, 24704), (1544, 13744), (1718, 12352), (3088, 6872), (3436, 6176)]