18119864

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{659}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 38966400

約数和(自身を除く): 20846536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 659, 982, 1318, 1964, 2636, 3437, 3928, 4613, 5272, 6874, 9226, 13748, 18452, 27496, 36904, 323569, 647138, 1294276, 2264983, 2588552, 4529966, 9059932, 18119864]

約数ペア:

[(1, 18119864), (2, 9059932), (4, 4529966), (7, 2588552), (8, 2264983), (14, 1294276), (28, 647138), (56, 323569), (491, 36904), (659, 27496), (982, 18452), (1318, 13748), (1964, 9226), (2636, 6874), (3437, 5272), (3928, 4613)]