21142576

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1117}}^1$

素因数の和:1158

約数の個数: 60

約数和(自身を含む): 50739312

約数和(自身を除く): 29596736

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 169, 182, 208, 338, 364, 676, 728, 1117, 1183, 1352, 1456, 2234, 2366, 2704, 4468, 4732, 7819, 8936, 9464, 14521, 15638, 17872, 18928, 29042, 31276, 58084, 62552, 101647, 116168, 125104, 188773, 203294, 232336, 377546, 406588, 755092, 813176, 1321411, 1510184, 1626352, 2642822, 3020368, 5285644, 10571288, 21142576]

約数ペア:

[(1, 21142576), (2, 10571288), (4, 5285644), (7, 3020368), (8, 2642822), (13, 1626352), (14, 1510184), (16, 1321411), (26, 813176), (28, 755092), (52, 406588), (56, 377546), (91, 232336), (104, 203294), (112, 188773), (169, 125104), (182, 116168), (208, 101647), (338, 62552), (364, 58084), (676, 31276), (728, 29042), (1117, 18928), (1183, 17872), (1352, 15638), (1456, 14521), (2234, 9464), (2366, 8936), (2704, 7819), (4468, 4732)]