21192416

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2557}}^1$

素因数の和:2611

約数の個数: 48

約数和(自身を含む): 48990816

約数和(自身を除く): 27798400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 74, 112, 148, 224, 259, 296, 518, 592, 1036, 1184, 2072, 2557, 4144, 5114, 8288, 10228, 17899, 20456, 35798, 40912, 71596, 81824, 94609, 143192, 189218, 286384, 378436, 572768, 662263, 756872, 1324526, 1513744, 2649052, 3027488, 5298104, 10596208, 21192416]

約数ペア:

[(1, 21192416), (2, 10596208), (4, 5298104), (7, 3027488), (8, 2649052), (14, 1513744), (16, 1324526), (28, 756872), (32, 662263), (37, 572768), (56, 378436), (74, 286384), (112, 189218), (148, 143192), (224, 94609), (259, 81824), (296, 71596), (518, 40912), (592, 35798), (1036, 20456), (1184, 17899), (2072, 10228), (2557, 8288), (4144, 5114)]