19686978

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{12289}}^1$

素因数の和:12386

約数の個数: 24

約数和(自身を含む): 43137900

約数和(自身を除く): 23450922

約数列:

[1, 2, 3, 6, 9, 18, 89, 178, 267, 534, 801, 1602, 12289, 24578, 36867, 73734, 110601, 221202, 1093721, 2187442, 3281163, 6562326, 9843489, 19686978]

約数ペア:

[(1, 19686978), (2, 9843489), (3, 6562326), (6, 3281163), (9, 2187442), (18, 1093721), (89, 221202), (178, 110601), (267, 73734), (534, 36867), (801, 24578), (1602, 12289)]