19539616

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 40293288

約数和(自身を除く): 20753672

約数列:

[1, 2, 4, 8, 16, 32, 41, 53, 82, 106, 164, 212, 281, 328, 424, 562, 656, 848, 1124, 1312, 1696, 2173, 2248, 4346, 4496, 8692, 8992, 11521, 14893, 17384, 23042, 29786, 34768, 46084, 59572, 69536, 92168, 119144, 184336, 238288, 368672, 476576, 610613, 1221226, 2442452, 4884904, 9769808, 19539616]

約数ペア:

[(1, 19539616), (2, 9769808), (4, 4884904), (8, 2442452), (16, 1221226), (32, 610613), (41, 476576), (53, 368672), (82, 238288), (106, 184336), (164, 119144), (212, 92168), (281, 69536), (328, 59572), (424, 46084), (562, 34768), (656, 29786), (848, 23042), (1124, 17384), (1312, 14893), (1696, 11521), (2173, 8992), (2248, 8692), (4346, 4496)]