21091150

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{3079}}^1$

素因数の和:3228

約数の個数: 24

約数和(自身を含む): 39528720

約数和(自身を除く): 18437570

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 685, 1370, 3079, 3425, 6158, 6850, 15395, 30790, 76975, 153950, 421823, 843646, 2109115, 4218230, 10545575, 21091150]

約数ペア:

[(1, 21091150), (2, 10545575), (5, 4218230), (10, 2109115), (25, 843646), (50, 421823), (137, 153950), (274, 76975), (685, 30790), (1370, 15395), (3079, 6850), (3425, 6158)]