21081424

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14479}}^1$

素因数の和:14507

約数の個数: 40

約数和(自身を含む): 50274560

約数和(自身を除く): 29193136

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14479, 28958, 57916, 101353, 115832, 188227, 202706, 231664, 376454, 405412, 752908, 810824, 1317589, 1505816, 1621648, 2635178, 3011632, 5270356, 10540712, 21081424]

約数ペア:

[(1, 21081424), (2, 10540712), (4, 5270356), (7, 3011632), (8, 2635178), (13, 1621648), (14, 1505816), (16, 1317589), (26, 810824), (28, 752908), (52, 405412), (56, 376454), (91, 231664), (104, 202706), (112, 188227), (182, 115832), (208, 101353), (364, 57916), (728, 28958), (1456, 14479)]