20841216

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^1\times {\mathrm{2467}}^1$

素因数の和:2497

約数の個数: 72

約数和(自身を含む): 60535104

約数和(自身を除く): 39693888

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 256, 264, 352, 384, 528, 704, 768, 1056, 1408, 2112, 2467, 2816, 4224, 4934, 7401, 8448, 9868, 14802, 19736, 27137, 29604, 39472, 54274, 59208, 78944, 81411, 108548, 118416, 157888, 162822, 217096, 236832, 315776, 325644, 434192, 473664, 631552, 651288, 868384, 947328, 1302576, 1736768, 1894656, 2605152, 3473536, 5210304, 6947072, 10420608, 20841216]

約数ペア:

[(1, 20841216), (2, 10420608), (3, 6947072), (4, 5210304), (6, 3473536), (8, 2605152), (11, 1894656), (12, 1736768), (16, 1302576), (22, 947328), (24, 868384), (32, 651288), (33, 631552), (44, 473664), (48, 434192), (64, 325644), (66, 315776), (88, 236832), (96, 217096), (128, 162822), (132, 157888), (176, 118416), (192, 108548), (256, 81411), (264, 78944), (352, 59208), (384, 54274), (528, 39472), (704, 29604), (768, 27137), (1056, 19736), (1408, 14802), (2112, 9868), (2467, 8448), (2816, 7401), (4224, 4934)]