21021908608

素因数分解:

$2^7\times {\mathrm{821}}^1\times {\mathrm{200041}}^1$

素因数の和:200876

約数の個数: 32

約数和(自身を含む): 41930803620

約数和(自身を除く): 20908895012

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 821, 1642, 3284, 6568, 13136, 26272, 52544, 105088, 200041, 400082, 800164, 1600328, 3200656, 6401312, 12802624, 25605248, 164233661, 328467322, 656934644, 1313869288, 2627738576, 5255477152, 10510954304, 21021908608]

約数ペア:

[(1, 21021908608), (2, 10510954304), (4, 5255477152), (8, 2627738576), (16, 1313869288), (32, 656934644), (64, 328467322), (128, 164233661), (821, 25605248), (1642, 12802624), (3284, 6401312), (6568, 3200656), (13136, 1600328), (26272, 800164), (52544, 400082), (105088, 200041)]