20688512

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12433}}^1$

素因数の和:12460

約数の個数: 32

約数和(自身を含む): 44389380

約数和(自身を除く): 23700868

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12433, 24866, 49732, 99464, 161629, 198928, 323258, 397856, 646516, 795712, 1293032, 1591424, 2586064, 5172128, 10344256, 20688512]

約数ペア:

[(1, 20688512), (2, 10344256), (4, 5172128), (8, 2586064), (13, 1591424), (16, 1293032), (26, 795712), (32, 646516), (52, 397856), (64, 323258), (104, 198928), (128, 161629), (208, 99464), (416, 49732), (832, 24866), (1664, 12433)]