21040628

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44203}}^1$

素因数の和:44231

約数の個数: 24

約数和(自身を含む): 44557632

約数和(自身を除く): 23517004

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44203, 88406, 176812, 309421, 618842, 751451, 1237684, 1502902, 3005804, 5260157, 10520314, 21040628]

約数ペア:

[(1, 21040628), (2, 10520314), (4, 5260157), (7, 3005804), (14, 1502902), (17, 1237684), (28, 751451), (34, 618842), (68, 309421), (119, 176812), (238, 88406), (476, 44203)]