20949376

素因数分解:

$2^7\times 7^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 48372480

約数和(自身を除く): 27423104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 103, 112, 128, 206, 224, 227, 412, 448, 454, 721, 824, 896, 908, 1442, 1589, 1648, 1816, 2884, 3178, 3296, 3632, 5768, 6356, 6592, 7264, 11536, 12712, 13184, 14528, 23072, 23381, 25424, 29056, 46144, 46762, 50848, 92288, 93524, 101696, 163667, 187048, 203392, 327334, 374096, 654668, 748192, 1309336, 1496384, 2618672, 2992768, 5237344, 10474688, 20949376]

約数ペア:

[(1, 20949376), (2, 10474688), (4, 5237344), (7, 2992768), (8, 2618672), (14, 1496384), (16, 1309336), (28, 748192), (32, 654668), (56, 374096), (64, 327334), (103, 203392), (112, 187048), (128, 163667), (206, 101696), (224, 93524), (227, 92288), (412, 50848), (448, 46762), (454, 46144), (721, 29056), (824, 25424), (896, 23381), (908, 23072), (1442, 14528), (1589, 13184), (1648, 12712), (1816, 11536), (2884, 7264), (3178, 6592), (3296, 6356), (3632, 5768)]