17981404

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2687}}^1$

素因数の和:2937

約数の個数: 24

約数和(自身を含む): 36126720

約数和(自身を除く): 18145316

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 2687, 3346, 5374, 6692, 10748, 18809, 37618, 75236, 642193, 1284386, 2568772, 4495351, 8990702, 17981404]

約数ペア:

[(1, 17981404), (2, 8990702), (4, 4495351), (7, 2568772), (14, 1284386), (28, 642193), (239, 75236), (478, 37618), (956, 18809), (1673, 10748), (2687, 6692), (3346, 5374)]