21082768

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6491}}^1$

素因数の和:6535

約数の個数: 40

約数和(自身を含む): 48300480

約数和(自身を除く): 27217712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6491, 12982, 25964, 45437, 51928, 90874, 103856, 181748, 188239, 363496, 376478, 726992, 752956, 1317673, 1505912, 2635346, 3011824, 5270692, 10541384, 21082768]

約数ペア:

[(1, 21082768), (2, 10541384), (4, 5270692), (7, 3011824), (8, 2635346), (14, 1505912), (16, 1317673), (28, 752956), (29, 726992), (56, 376478), (58, 363496), (112, 188239), (116, 181748), (203, 103856), (232, 90874), (406, 51928), (464, 45437), (812, 25964), (1624, 12982), (3248, 6491)]