21575072

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 44724960

約数和(自身を除く): 23149888

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 67, 116, 134, 232, 268, 347, 464, 536, 694, 928, 1072, 1388, 1943, 2144, 2776, 3886, 5552, 7772, 10063, 11104, 15544, 20126, 23249, 31088, 40252, 46498, 62176, 80504, 92996, 161008, 185992, 322016, 371984, 674221, 743968, 1348442, 2696884, 5393768, 10787536, 21575072]

約数ペア:

[(1, 21575072), (2, 10787536), (4, 5393768), (8, 2696884), (16, 1348442), (29, 743968), (32, 674221), (58, 371984), (67, 322016), (116, 185992), (134, 161008), (232, 92996), (268, 80504), (347, 62176), (464, 46498), (536, 40252), (694, 31088), (928, 23249), (1072, 20126), (1388, 15544), (1943, 11104), (2144, 10063), (2776, 7772), (3886, 5552)]