20711552

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 22911808

約数列:

[1, 2, 4, 8, 16, 32, 43, 53, 64, 71, 86, 106, 128, 142, 172, 212, 284, 344, 424, 568, 688, 848, 1136, 1376, 1696, 2272, 2279, 2752, 3053, 3392, 3763, 4544, 4558, 5504, 6106, 6784, 7526, 9088, 9116, 12212, 15052, 18232, 24424, 30104, 36464, 48848, 60208, 72928, 97696, 120416, 145856, 161809, 195392, 240832, 291712, 323618, 390784, 481664, 647236, 1294472, 2588944, 5177888, 10355776, 20711552]

約数ペア:

[(1, 20711552), (2, 10355776), (4, 5177888), (8, 2588944), (16, 1294472), (32, 647236), (43, 481664), (53, 390784), (64, 323618), (71, 291712), (86, 240832), (106, 195392), (128, 161809), (142, 145856), (172, 120416), (212, 97696), (284, 72928), (344, 60208), (424, 48848), (568, 36464), (688, 30104), (848, 24424), (1136, 18232), (1376, 15052), (1696, 12212), (2272, 9116), (2279, 9088), (2752, 7526), (3053, 6784), (3392, 6106), (3763, 5504), (4544, 4558)]