21150460

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4021}}^1$

素因数の和:4293

約数の個数: 24

約数和(自身を含む): 44595936

約数和(自身を除く): 23445476

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 4021, 5260, 8042, 16084, 20105, 40210, 80420, 1057523, 2115046, 4230092, 5287615, 10575230, 21150460]

約数ペア:

[(1, 21150460), (2, 10575230), (4, 5287615), (5, 4230092), (10, 2115046), (20, 1057523), (263, 80420), (526, 40210), (1052, 20105), (1315, 16084), (2630, 8042), (4021, 5260)]