21037712

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69203}}^1$

素因数の和:69230

約数の個数: 20

約数和(自身を含む): 42906480

約数和(自身を除く): 21868768

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69203, 138406, 276812, 553624, 1107248, 1314857, 2629714, 5259428, 10518856, 21037712]

約数ペア:

[(1, 21037712), (2, 10518856), (4, 5259428), (8, 2629714), (16, 1314857), (19, 1107248), (38, 553624), (76, 276812), (152, 138406), (304, 69203)]