18539864

素因数分解:

$2^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1319}}^1$

素因数の和:1583

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 21376936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 251, 502, 1004, 1319, 1757, 2008, 2638, 3514, 5276, 7028, 9233, 10552, 14056, 18466, 36932, 73864, 331069, 662138, 1324276, 2317483, 2648552, 4634966, 9269932, 18539864]

約数ペア:

[(1, 18539864), (2, 9269932), (4, 4634966), (7, 2648552), (8, 2317483), (14, 1324276), (28, 662138), (56, 331069), (251, 73864), (502, 36932), (1004, 18466), (1319, 14056), (1757, 10552), (2008, 9233), (2638, 7028), (3514, 5276)]