21565376

素因数分解:

$2^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1301}}^1$

素因数の和:1357

約数の個数: 56

約数和(自身を含む): 50267616

約数和(自身を除く): 28702240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 148, 224, 259, 296, 448, 518, 592, 1036, 1184, 1301, 2072, 2368, 2602, 4144, 5204, 8288, 9107, 10408, 16576, 18214, 20816, 36428, 41632, 48137, 72856, 83264, 96274, 145712, 192548, 291424, 336959, 385096, 582848, 673918, 770192, 1347836, 1540384, 2695672, 3080768, 5391344, 10782688, 21565376]

約数ペア:

[(1, 21565376), (2, 10782688), (4, 5391344), (7, 3080768), (8, 2695672), (14, 1540384), (16, 1347836), (28, 770192), (32, 673918), (37, 582848), (56, 385096), (64, 336959), (74, 291424), (112, 192548), (148, 145712), (224, 96274), (259, 83264), (296, 72856), (448, 48137), (518, 41632), (592, 36428), (1036, 20816), (1184, 18214), (1301, 16576), (2072, 10408), (2368, 9107), (2602, 8288), (4144, 5204)]