20915676

素因数分解:

$2^2\times 3^2\times {\mathrm{487}}^1\times {\mathrm{1193}}^1$

素因数の和:1690

約数の個数: 36

約数和(自身を含む): 53023152

約数和(自身を除く): 32107476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 487, 974, 1193, 1461, 1948, 2386, 2922, 3579, 4383, 4772, 5844, 7158, 8766, 10737, 14316, 17532, 21474, 42948, 580991, 1161982, 1742973, 2323964, 3485946, 5228919, 6971892, 10457838, 20915676]

約数ペア:

[(1, 20915676), (2, 10457838), (3, 6971892), (4, 5228919), (6, 3485946), (9, 2323964), (12, 1742973), (18, 1161982), (36, 580991), (487, 42948), (974, 21474), (1193, 17532), (1461, 14316), (1948, 10737), (2386, 8766), (2922, 7158), (3579, 5844), (4383, 4772)]