18986030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38747}}^1$

素因数の和:38768

約数の個数: 24

約数和(自身を含む): 39755448

約数和(自身を除く): 20769418

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38747, 77494, 193735, 271229, 387470, 542458, 1356145, 1898603, 2712290, 3797206, 9493015, 18986030]

約数ペア:

[(1, 18986030), (2, 9493015), (5, 3797206), (7, 2712290), (10, 1898603), (14, 1356145), (35, 542458), (49, 387470), (70, 271229), (98, 193735), (245, 77494), (490, 38747)]