21062960

素因数分解:

$2^4\times 5^1\times {\mathrm{263287}}^1$

素因数の和:263300

約数の個数: 20

約数和(自身を含む): 48971568

約数和(自身を除く): 27908608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263287, 526574, 1053148, 1316435, 2106296, 2632870, 4212592, 5265740, 10531480, 21062960]

約数ペア:

[(1, 21062960), (2, 10531480), (4, 5265740), (5, 4212592), (8, 2632870), (10, 2106296), (16, 1316435), (20, 1053148), (40, 526574), (80, 263287)]