20784426496

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2136557}}^1$

素因数の和:2136594

約数の個数: 40

約数和(自身を含む): 43713976680

約数和(自身を除く): 22929550184

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2432, 4864, 9728, 2136557, 4273114, 8546228, 17092456, 34184912, 40594583, 68369824, 81189166, 136739648, 162378332, 273479296, 324756664, 546958592, 649513328, 1093917184, 1299026656, 2598053312, 5196106624, 10392213248, 20784426496]

約数ペア:

[(1, 20784426496), (2, 10392213248), (4, 5196106624), (8, 2598053312), (16, 1299026656), (19, 1093917184), (32, 649513328), (38, 546958592), (64, 324756664), (76, 273479296), (128, 162378332), (152, 136739648), (256, 81189166), (304, 68369824), (512, 40594583), (608, 34184912), (1216, 17092456), (2432, 8546228), (4864, 4273114), (9728, 2136557)]