17681986

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{617}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 32037120

約数和(自身を除く): 14355134

約数列:

[1, 2, 7, 14, 23, 46, 89, 161, 178, 322, 617, 623, 1234, 1246, 2047, 4094, 4319, 8638, 14191, 14329, 28382, 28658, 54913, 99337, 109826, 198674, 384391, 768782, 1262999, 2525998, 8840993, 17681986]

約数ペア:

[(1, 17681986), (2, 8840993), (7, 2525998), (14, 1262999), (23, 768782), (46, 384391), (89, 198674), (161, 109826), (178, 99337), (322, 54913), (617, 28658), (623, 28382), (1234, 14329), (1246, 14191), (2047, 8638), (4094, 4319)]