20857500274

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{571783}}^1$

素因数の和:571882

約数の個数: 32

約数和(自身を含む): 35734212864

約数和(自身を除く): 14876712590

約数列:

[1, 2, 13, 23, 26, 46, 61, 122, 299, 598, 793, 1403, 1586, 2806, 18239, 36478, 571783, 1143566, 7433179, 13151009, 14866358, 26302018, 34878763, 69757526, 170963117, 341926234, 453423919, 802211549, 906847838, 1604423098, 10428750137, 20857500274]

約数ペア:

[(1, 20857500274), (2, 10428750137), (13, 1604423098), (23, 906847838), (26, 802211549), (46, 453423919), (61, 341926234), (122, 170963117), (299, 69757526), (598, 34878763), (793, 26302018), (1403, 14866358), (1586, 13151009), (2806, 7433179), (18239, 1143566), (36478, 571783)]